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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2656418.pdf | 942 kB | Shaun Ewing | Oct 20, 1953 00:00 |
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US-2656418-A // Crossbar system switchboard unit mounting // Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 942 kB | Shaun Ewing | Oct 20, 1953 00:00 | US-2656418-A // Crossbar system switchboard unit mounting // Arthur Richard P. // Kellogg Switchboard & Supply | ||||
| PDF File 2651683.pdf | 757 kB | Shaun Ewing | Sept 08, 1953 00:00 |
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US-2651683-A // Telephone subset wiring-plan system // Storey Wilbur G. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 757 kB | Shaun Ewing | Sept 08, 1953 00:00 | US-2651683-A // Telephone subset wiring-plan system // Storey Wilbur G. // Kellogg Switchboard & Supply | ||||
| PDF File 2647961.pdf | 768 kB | Shaun Ewing | Aug 04, 1953 00:00 |
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US-2647961-A // Multicontact relay // Saunders Norman H. ; Hackett Claude J. ; Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 768 kB | Shaun Ewing | Aug 04, 1953 00:00 | US-2647961-A // Multicontact relay // Saunders Norman H. ; Hackett Claude J. ; Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2643365.pdf | 446 kB | Shaun Ewing | Jun 23, 1953 00:00 |
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US-2643365-A // Terminal pin block // Rose Morris // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 446 kB | Shaun Ewing | Jun 23, 1953 00:00 | US-2643365-A // Terminal pin block // Rose Morris // Kellogg Switchboard & Supply | ||||
| PDF File 2643299.pdf | 562 kB | Shaun Ewing | Jun 23, 1953 00:00 |
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US-2643299-A // Selecting and actuating mechanism for crossbar switches // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 562 kB | Shaun Ewing | Jun 23, 1953 00:00 | US-2643299-A // Selecting and actuating mechanism for crossbar switches // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2640183.pdf | 674 kB | Shaun Ewing | May 26, 1953 00:00 |
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US-2640183-A // Multipoint plug and jack // Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 674 kB | Shaun Ewing | May 26, 1953 00:00 | US-2640183-A // Multipoint plug and jack // Arthur Richard P. // Kellogg Switchboard & Supply | ||||
| PDF File 2635130.pdf | 395 kB | Shaun Ewing | Apr 14, 1953 00:00 |
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US-2635130-A // Subassembly for telephone sets // Jr. Joseph F. Houdek, // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 395 kB | Shaun Ewing | Apr 14, 1953 00:00 | US-2635130-A // Subassembly for telephone sets // Jr. Joseph F. Houdek, // Kellogg Switchboard & Supply | ||||
| PDF File 2634403.pdf | 414 kB | Shaun Ewing | Apr 07, 1953 00:00 |
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US-2634403-A // Control and marking circuits for adding-type impulse counters // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 414 kB | Shaun Ewing | Apr 07, 1953 00:00 | US-2634403-A // Control and marking circuits for adding-type impulse counters // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2627554.pdf | 2.65 MB | Shaun Ewing | Feb 03, 1953 00:00 |
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US-2627554-A // Crossbar system switchboard construction // Earle Edwin L. ; Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 2.65 MB | Shaun Ewing | Feb 03, 1953 00:00 | US-2627554-A // Crossbar system switchboard construction // Earle Edwin L. ; Arthur Richard P. // Kellogg Switchboard & Supply | ||||
| PDF File 2624785.pdf | 995 kB | Shaun Ewing | Jan 06, 1953 00:00 |
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US-2624785-A // Counting and registering relay circuit // Hemminger Paul // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 995 kB | Shaun Ewing | Jan 06, 1953 00:00 | US-2624785-A // Counting and registering relay circuit // Hemminger Paul // Kellogg Switchboard & Supply | ||||
| PDF File 2615997.pdf | 943 kB | Shaun Ewing | Oct 28, 1952 00:00 |
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US-2615997-A // Telephone repeater // Brodie George H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 943 kB | Shaun Ewing | Oct 28, 1952 00:00 | US-2615997-A // Telephone repeater // Brodie George H. // Kellogg Switchboard & Supply | ||||
| PDF File 2611827.pdf | 1.07 MB | Shaun Ewing | Sept 23, 1952 00:00 |
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US-2611827-A // Crossbar switch // Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 1.07 MB | Shaun Ewing | Sept 23, 1952 00:00 | US-2611827-A // Crossbar switch // Arthur Richard P. // Kellogg Switchboard & Supply | ||||
| PDF File 2606958.pdf | 838 kB | Shaun Ewing | Aug 12, 1952 00:00 |
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US-2606958-A // Multicontact relays // Saunders Norman H. ; Hackett Claude J. ; Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 838 kB | Shaun Ewing | Aug 12, 1952 00:00 | US-2606958-A // Multicontact relays // Saunders Norman H. ; Hackett Claude J. ; Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2590926.pdf | 556 kB | Shaun Ewing | Apr 01, 1952 00:00 |
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US-2590926-A // Multirelay electric timer // Jr. Richard P. Boyer, ; Bellamy John L. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 556 kB | Shaun Ewing | Apr 01, 1952 00:00 | US-2590926-A // Multirelay electric timer // Jr. Richard P. Boyer, ; Bellamy John L. // Kellogg Switchboard & Supply | ||||
| PDF File 2587103.pdf | 7.07 MB | Shaun Ewing | Feb 26, 1952 00:00 |
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US-2587103-A // Path-selection control arrangement for primary-secondary switching systems // Jr. Richard P. Boyer, // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 7.07 MB | Shaun Ewing | Feb 26, 1952 00:00 | US-2587103-A // Path-selection control arrangement for primary-secondary switching systems // Jr. Richard P. Boyer, // Kellogg Switchboard & Supply | ||||
| PDF File 2578032.pdf | 746 kB | Shaun Ewing | Dec 11, 1951 00:00 |
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US-2578032-A // Variable percussion hermetically sealed electromagnetic call-signal device // Augustine Roy W. ; Jr. Joseph F. Houdek, // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 746 kB | Shaun Ewing | Dec 11, 1951 00:00 | US-2578032-A // Variable percussion hermetically sealed electromagnetic call-signal device // Augustine Roy W. ; Jr. Joseph F. Houdek, // Kellogg Switchboard & Supply | ||||
| PDF File 2577067.pdf | 3.16 MB | Shaun Ewing | Dec 04, 1951 00:00 |
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US-2577067-A // Crossbar switch // Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 3.16 MB | Shaun Ewing | Dec 04, 1951 00:00 | US-2577067-A // Crossbar switch // Arthur Richard P. // Kellogg Switchboard & Supply | ||||
| PDF File 2574904.pdf | 569 kB | Shaun Ewing | Nov 13, 1951 00:00 |
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US-2574904-A // Endless chain of counting relays // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 569 kB | Shaun Ewing | Nov 13, 1951 00:00 | US-2574904-A // Endless chain of counting relays // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2574903.pdf | 4.51 MB | Shaun Ewing | Nov 13, 1951 00:00 |
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US-2574903-A // Translator for shifted lines and parties // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.51 MB | Shaun Ewing | Nov 13, 1951 00:00 | US-2574903-A // Translator for shifted lines and parties // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2571649.pdf | 705 kB | Shaun Ewing | Oct 16, 1951 00:00 |
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US-2571649-A // Telephone finger wheel support // Arthur Richard P. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 705 kB | Shaun Ewing | Oct 16, 1951 00:00 | US-2571649-A // Telephone finger wheel support // Arthur Richard P. // Kellogg Switchboard & Supply |
