The patent system of the United States so far as it relates to the granting of patents: a history (1891)
Campbell, Levin H. [from old catalog] · Washington, D.C., Press of McGill & Wallace · leaf 4
0 011 245 667 3 .•••H>il :iJH iH r.s<|||HH ■•jS •>,(J.iMi :*^r(29 :>;1J^ •-^ ■. .I^al ■^iia ;:\jVg ^^flffll / -^^^ 1 *» -»S«J» ■ca .• .:■■ inM ■■ -iiai •■-:;f4ia(l »:!>t<3| T^ J Vr .n* … LEVIN H. CAMPBELL, WASHINGTON, D. C. -r r i-,.V :.;■;-~.^ •^t^lV- Vr^V V^J^i^ THE PATENT SYSTEM OF THE UNITED STATES so FAR AS IT RELATES TO THE GRANTING OF PATENTS: A HISTORY. By levin H.CAMPBELL, /v> cOP^RiGht ^\, ^ Assistant Examiner in the United States Patent Offlci. ■ t^ lu A yi Pa r
United States. Patent Office · Patents
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