<div class="description">
<dl><dd>Title devised by cataloger</dd>
<dd>Bound collection (2 v.) of patents issued to Edison by the U.S. Patent Office for various technological improvements and inventions</dd>
<dd>Vol. 1 contains 152 patents, dating from June 1, 1869 (no. 90,646, for improvement in electrographic vote-recorder), to Dec. 23, 1879 (no. 222,881, for improvement in magneto-electric machines). The patents are in chronological and numerical order, with the exception of two from Apr. 22, 1879 (nos. 214,636-214,637) which are bound at the end of the volume. The patents in v. 1 are mostly duplicated in v. 2, although some are re-issues or have slightly different texts</dd>
<dd>Vol. 2 contains 383 patents, dating from June 1, 1869 (no. 90,646, for improvement in electrographic vote-recorder) to May 20, 1884 (no. 298,956, for mode of operating dynamo-electric machines), arranged in chronological and numerical order</dd>
<dd>The patent drawings were photo-lithographed by N. Peters, Washington, D.C</dd>
<dd>Patent 282,287 (July 31, 1883) in v. 2 includes a printed errata slip</dd>
<dd>SCDIRB copy of v. 1 (39088009797978) has a sheet of Paris hotel stationery with ms. pencil notes (by Hammer?), concerning patents for phonographs, tipped in on the verso of the drawing for patent no. 210,767 (Dec. 10, 1878)</dd>
<dd>SCDIRB copy of v. 1 has stamp: From the William J. Hammer collection</dd>
<dd>SCDIRB copy of v. 1 has later black buckram portfolio with gilt-lettered spine; some leaves have been "silked" or otherwise repaired with tape</dd>
<dd>SCDIRB copy of v. 2 (39088009798059) has inscription on front free endpaper: W.J. Hammer from Thomas A Edison, N[ew] York Feb[ruar]y 19th 1885; with Hammer's ink stamps: William J. Hammer; From the William J. Hammer Scientific Collection</dd>
<dd>SCDIRB copy of v. 2 has later green buckram binding; approximately 60 leaves of blank lined paper have been inserted at the front of the volume</dd></dl><br>Subjects: Catalogs; Patents; Edison, Thomas A. (Thomas Alva), 1847-1931; Inventions; Telegraph; Electric machinery; Electric apparatus and appliances; Phonograph; Telephone; Motors; Catalogs; Patents; Catalogs; Patents; Catalogs</div>
<div class="fn value">
<dl><dd>Edison, Thomas A. (Thomas Alva), 1847-1931</dd>
<dd>Peters, N. (Norris), lithographer</dd>
<dd>Hammer, William Joseph, 1858-1934, former owner. DSI</dd>
<dd>Edison, Thomas A. (Thomas Alva), 1847-1931, inscriber. DSI</dd>
<dd>United States. Patent Office</dd></dl></div>
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