Name Size Creator Creation Date Labels Comment  
PDF File 741807.pdf 790 kB Shaun Ewing Oct 20, 1903 00:00
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US-741807-A // Central-energy telephone system. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 738545.pdf 322 kB Shaun Ewing Sept 08, 1903 00:00
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US-738545-A // Cord-tip. // William Kaisling // Kellogg Switchboard & Supply
PDF File 736076.pdf 568 kB Shaun Ewing Aug 11, 1903 00:00
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US-736076-A // Telephone-receiver. // William W. Dean // Kellogg Switchboard & Supply
PDF File 733468.pdf 703 kB Shaun Ewing Jul 14, 1903 00:00
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US-733468-A // Annunciator. // Francis W. Dunbar // Kellogg Switchboard & Supply
PDF File 732098.pdf 919 kB Shaun Ewing Jun 30, 1903 00:00
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US-732098-A // Central-energy telephone system. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 729184.pdf 551 kB Shaun Ewing May 26, 1903 00:00
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US-729184-A // Transmitter-arm. // William Kaisling // Kellogg Switchboard & Supply
PDF File 728060.pdf 584 kB Shaun Ewing May 12, 1903 00:00
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US-728060-A // Switchboard incandescent lamp. // Allen D. Whipple // Kellogg Switchboard & Supply
PDF File 726964.pdf 841 kB Shaun Ewing May 05, 1903 00:00
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US-726964-A // Central-energy telephone system. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 724451.pdf 649 kB Shaun Ewing Apr 07, 1903 00:00
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US-724451-A // Signaling apparatus. // Francis W. Dunbar ; William W. Dean // Kellogg Switchboard & Supply
PDF File 722212.pdf 690 kB Shaun Ewing Mar 10, 1903 00:00
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US-722212-A // Subscriber's telephone-circuit. // William W. Dean // Kellogg Switchboard & Supply
PDF File 721124.pdf 1.02 MB Shaun Ewing Feb 17, 1903 00:00
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US-721124-A // Central-energy telephone system. // Francis W. Dunbar // Kellogg Switchboard Ans Supply Company
PDF File 720885.pdf 935 kB Shaun Ewing Feb 17, 1903 00:00
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US-720885-A // Self-indicating operator's key. // George L. Burlingame // Kellogg Switchboard & Supply
PDF File 718855.pdf 1.11 MB Shaun Ewing Jan 20, 1903 00:00
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US-718855-A // Telephone-set. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 717973.pdf 1.63 MB Shaun Ewing Jan 06, 1903 00:00
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US-717973-A // Testing system for telephone-lines. // William W. Dean // Kellogg Switchboard & Supply
PDF File 717429.pdf 329 kB Shaun Ewing Dec 30, 1902 00:00
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US-717429-A // Telephone-receiver. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 717428.pdf 408 kB Shaun Ewing Dec 30, 1902 00:00
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US-717428-A // Telephone-receiver. // Kempster B. Miller // Kellogg Switchboard & Supply
PDF File 717300.pdf 539 kB Shaun Ewing Dec 30, 1902 00:00
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US-717300-A // Current-protective device. // William A. Taylor // Kellogg Switchboard & Supply
PDF File 717212.pdf 749 kB Shaun Ewing Dec 30, 1902 00:00
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US-717212-A // Protective apparatus. // William Kaisling // Kellogg Switchboard & Supply
PDF File 705092.pdf 535 kB Shaun Ewing Jul 22, 1902 00:00
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US-705092-A // Supervisory relay. // William Kaisling // Kellogg Switchboard & Supply
PDF File 697515.pdf 529 kB Shaun Ewing Apr 15, 1902 00:00
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US-697515-A // Combined jack and drop. // Kempster B. Miller // Kellogg Switchboard & Supply
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