(after stating the facts as above). Appellant states that the only substantial question here presented is validity ; i. e. can invention be found in this “pin ticket” ?
*149We accept the statement, and shall endeavor to answer the query, without bolstering decision by dwelling on the presumption attaching to grant of letters, or the admitted fact that defendant controls and manufactures under another patent, over which priority was awarded Thompson after a protracted interference. Such proceedings assume a belief in validity on the part of both contestants. Roth v. Harris, 168 Fed. 279, 93 C. C. A. 581.
[1] Invention, as we are instructed by the highest court, is not judicially to be defined; i. e., it cannot be determined as to limit of meaning. But many attributes may be marked. Thus patentable invention is a means only; it is the embodiment of the inventive idea (Cor-rington y. Westiughouse, &c. Co., 178 Fed. 715, 103 C. C. A. 479); and even the smallest invention, if it merits the title, must meet an existing want, yet that want, invoking invention, may never be apparent until some previous invention, imperfectly satisfying the more universal want, discloses the subordinate and narrower -need (1 Rob. Pat. 134).
It is this thought that justifies, and indeed compels, study of the prior art, as distinguished from anticipatory patents or uses. To know, not only what the “more universal want” was, but how far and by what means it had been supplied, is a process not seldom resulting in the validation of modest inventions, and the destruction of many of great pretense.
This indicates that “invention” is not a term of legal art, like “common carrier” or “contingent remainder”; nor can applicability be fixed by consulting dictionaries, while reports furnish, not precedents, but only illustrations. What does connect the large word with the perhaps small thing is evidence; and litigations like this become studies of facts, as varying in patent matters as in other human contests.
[2] This record shows that, trivial as the ax tide seems (e. g.) to ourselves, pin tickets have long been a widely used trade adjunct; also that much effort has been expended to produce them cheaply in quantity, yet affixable to a fabric’s exige firmly and with ease, without pricking the operator or injuring what is marked.
The “more universal want” has been and still is largely supplied by the “Empire ticket,” made under an expired patent (St. John, 340,-961). The substantial difference between that ticket and Thompson’s device is that the prongs of the latter’s staple are formed, not by cutting a wire transversely and making thereby a sharp point, but by doubling the wire back on itself and so producing a smooth, blunt point.
The Bayer reissue, 13,769, shows that making smooth pointed pins by doubling a small wire on itself was known before Thompson; no more is claimed for it. But the tool which rapidly and cheaply makes staple points by cutting wire may leave burrs or roughened edges, which, though usually negligible, cut (e. g.) delicate silk.
Thus the “narrower need” is disclosed, and Thompson is confessedly the first to supply it. Others have tried to; probably Bayer did; but his pin could not hold its ticket firmly, and devices clutching or binding, but not piercing, the fabric, have been put on the market, but without covering the ground.
*150Here, then, is a want shown to have long existed among intelligent merchants, whose desires are always studied by equally intelligent manufacturers, and the question recurs whether to furnish the means of supplying that want is invention.
[3] It is, of course, urged, and naturally, that no more than a mechanic’s skill was needed to take the final step. But a mechanic is one who applies his trade by rule or rote, and only uses what he learned yesterday to do the'work of to-day in the same old manner. He may do it excellently, but'if he has, not only hindsight, but insight or foresight, first to comprehend the problem and use even the learning of yesterday to do the new thing in a new way, that mechanic has usually earned the inventor’s title.
This is what Thompson has done, if the matter be reasoned from the premises of evidence. It is, however, an important evidential element that the trade world to which this little device must appeal, whether of manufacturers or buyers, evidently regards it as important. That word is always relative, and courts and juries should learn its meaning from the evidence, and not their own emotions.
Thus guided by the evidence, we find as matter of fact that the patent discloses invention, and in so doing we arrive at a result not new in this court, and do it in substantially the same way as heretofore. George Frost Co. v. Cohn, 119 Fed. 505, 56 C. C. A. 185; David v. Harris, 206 Fed. 902, 124 C. C. A. 477; Barry v. Harpoon, etc., Co., 209 Fed. 207, 126 C. C. A. 301; Fonseca v. Suarez, 232 Fed. 155, 146 C. C. A. 347.
The decree is affirmed, with costs.