Electro Magnets for
Relays, etc. . . . . . . . . . . . . April 23, 1873
162,633 Duplex Telegraphs. . . . . . . . . . April 22, 1873
151,209 Automatic Telegraphy and Perforators
Therefor . . . . . . . . . . . . . . .Aug. 25, 1873
160,402 Solutions for Chemical Telegraph PaperSept. 29, 1873
160,404 Solutions for Chemical Telegraph PaperSept. 29, 1873
160,580 Solutions for Chemical Telegraph PaperOct. 14, 1873
160,403 Solutions for Chemical Telegraph PaperOct. 29, 1873

1874

154,788 District Telegraph Signal Box. . . . .April 2, 1874
168,004 Printing Telegraph . . . . . . . . . . May 22, 1874
166,859 Chemical Telegraphy. . . . . . . . . . June 1, 1874
166,860 Chemical Telegraphy. . . . . . . . . . June 1, 1874
166,861 Chemical Telegraphy. . . . . . . . . . June 1, 1874
158,787 Telegraph Apparatus. . . . . . . . . . Aug. 7, 1874
172,305 Automatic Roman Character
Telegraph. . . . . . . . . . . . . . . Aug. 7, 1874
173,718 Automatic Telegraphy . . . . . . . . . Aug. 7, 1874
178,221 Duplex Telegraphs. . . . . . . . Aug. 19, 1874
178,222 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
178,223 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
180,858 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
207,723 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
480,567 Duplex Telegraphs. . . . . . . . . . .Aug. 19, 1874
207,724 Duplex Telegraphs. . . . . . . . . . .Dec. 14, 1874

1875

168,242 Transmitter and Receiver for Automatic
Telegraph. . . . . . . . . . . . . . .Jan. 18, 1875
168,243 Automatic Telegraphs . . . . . . . . .Jan. 18, 1875
168,385 Duplex Telegraphs. . . . . . . . . . .Jan. 18, 1875
168,466 Solution for Chemical Telegraphs . . .Jan. 18, 1875
168,467 Recording Point for Chemical Telegraph Jan. 18, 1875
195,751 Automatic Telegraphs . . . . . . . . . Jan. 18 1875
195,752 Automatic Telegraphs . . . . . . . . .Jan. 19, 1875
171,273 Telegraph Apparatus. . . . . . . . . . Feb 11, 1875
169,972 Electric Signalling Instrument . . . . Feb 24, 1875
209,241 Quadruplex Telegraph Repeaters (reissued
September 23, 1879, numbered
8906). . . . . . . . . . . . . . . . . Feb 24, 1875

1876

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