1873

139,128 Printing Telegraphs. . . . . . . . . .Jan. 21, 1873 139,129 Printing Telegraphs. . . . . . . . . .Feb. 13, 1873 140,487 Printing Telegraphs. . . . . . . . . .Feb. 13, 1873 140,489 Printing Telegraphs. . . . . . . . . .Feb. 13, 1873 138,870 Printing Telegraphs. . . . . . . . . .March 7, 1873 141,774 Chemical Telegraphs. . . . . . . . . .March 7, 1873 141,775 Perforator for Automatic Telegraphs. .March 7, 1873 141,777 Relay Magnets. . . . . . . . . . . . .March 7, 1873 142,688 Electric Regulators for Transmitting Instruments . . . . . . . . . . . . . .March 7, 1873 156,843 Duplex Chemical Telegraphs . . . . . .March 7, 1873 147,312 Perforators for Automatic Telegraphy March 24, 1873 147,314 Circuits for Chemical Telegraphs . . March 24, 1873 150,847 Receiving Instruments for Chemical Telegraphs . . . . . . . . . . . . . March 24, 1873 140,488 Printing Telegraphs. . . . . . . . . April 23, 1873 147,311 Electric Telegraphs. . . . . . . . . April 23, 1873 147,313 Chemical Telegraphs. . . . . . . . . April 23, 1873 147,917 Duplex Telegraphs. . . . . . . . . . April 23, 1873 150,846 Telegraph Relays . . . . . . . . . . April 23, 1873 160,405 Adjustable 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