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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1124561.pdf | 529 kB | Shaun Ewing | Jan 12, 1915 00:00 |
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US-1124561-A // Coin-box. // Richard I. Utter // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Jan 12, 1915 00:00 | US-1124561-A // Coin-box. // Richard I. Utter // Kellogg Switchboard & Supply | ||||
| PDF File 825439.pdf | 529 kB | Shaun Ewing | Jul 10, 1906 00:00 |
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US-825439-A // Special busy test for telephone-lines. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 529 kB | Shaun Ewing | Jul 10, 1906 00:00 | US-825439-A // Special busy test for telephone-lines. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 592302.pdf | 528 kB | Shaun Ewing | Oct 26, 1897 00:00 |
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US-592302-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | |||
| Version 1 (current) | 528 kB | Shaun Ewing | Oct 26, 1897 00:00 | US-592302-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | ||||
| PDF File 899379.pdf | 527 kB | Shaun Ewing | Sept 22, 1908 00:00 |
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US-899379-A // Party-line-indicating key. // Clifford C. Bradbury // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Sept 22, 1908 00:00 | US-899379-A // Party-line-indicating key. // Clifford C. Bradbury // Kellogg Switchboard & Supply | ||||
| PDF File 817140.pdf | 526 kB | Shaun Ewing | Apr 03, 1906 00:00 |
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US-817140-A // Telephone-transmitter. // William W. Dean // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Apr 03, 1906 00:00 | US-817140-A // Telephone-transmitter. // William W. Dean // Kellogg Switchboard & Supply | ||||
| PDF File 877058.pdf | 526 kB | Shaun Ewing | Jan 21, 1908 00:00 |
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US-877058-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 526 kB | Shaun Ewing | Jan 21, 1908 00:00 | US-877058-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply | ||||
| PDF File 1441427.pdf | 523 kB | Shaun Ewing | Jan 09, 1923 00:00 |
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US-1441427-A // Polarity indicator // Kaisling William // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Jan 09, 1923 00:00 | US-1441427-A // Polarity indicator // Kaisling William // Kellogg Switchboard & Supply | ||||
| PDF File 912822.pdf | 523 kB | Shaun Ewing | Feb 16, 1909 00:00 |
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US-912822-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 523 kB | Shaun Ewing | Feb 16, 1909 00:00 | US-912822-A // Telephone system. // William W. Dean // Kellogg Switchboard & Supply | ||||
| PDF File 1102415.pdf | 522 kB | Shaun Ewing | Jul 07, 1914 00:00 |
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US-1102415-A // Biased polarized ringer. // William Kaisling // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 522 kB | Shaun Ewing | Jul 07, 1914 00:00 | US-1102415-A // Biased polarized ringer. // William Kaisling // Kellogg Switchboard & Supply | ||||
| PDF File 1860997.pdf | 521 kB | Shaun Ewing | May 31, 1932 00:00 |
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US-1860997-A // Receiving circuit // Currier Hiram D. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 521 kB | Shaun Ewing | May 31, 1932 00:00 | US-1860997-A // Receiving circuit // Currier Hiram D. // Kellogg Switchboard & Supply | ||||
| PDF File 592403.pdf | 521 kB | Shaun Ewing | Oct 26, 1897 00:00 |
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US-592403-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | |||
| Version 1 (current) | 521 kB | Shaun Ewing | Oct 26, 1897 00:00 | US-592403-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | ||||
| PDF File 1001723.pdf | 520 kB | Shaun Ewing | Aug 29, 1911 00:00 |
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US-1001723-A // Telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Aug 29, 1911 00:00 | US-1001723-A // Telephone system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 1625465.pdf | 520 kB | Shaun Ewing | Apr 19, 1927 00:00 |
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US-1625465-A // Coil // Grout Martin B. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 520 kB | Shaun Ewing | Apr 19, 1927 00:00 | US-1625465-A // Coil // Grout Martin B. // Kellogg Switchboard & Supply | ||||
| PDF File 2366011.pdf | 519 kB | Shaun Ewing | Dec 26, 1944 00:00 |
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US-2366011-A // Two-way amplifier // Donaldson Harry J. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Dec 26, 1944 00:00 | US-2366011-A // Two-way amplifier // Donaldson Harry J. // Kellogg Switchboard & Supply | ||||
| PDF File 822611.pdf | 519 kB | Shaun Ewing | Jun 05, 1906 00:00 |
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US-822611-A // Multiple switchboard for telephone-exchanges. // Milo G. Kellogg // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Jun 05, 1906 00:00 | US-822611-A // Multiple switchboard for telephone-exchanges. // Milo G. Kellogg // Kellogg Switchboard & Supply | ||||
| PDF File 1276367.pdf | 519 kB | Shaun Ewing | Aug 20, 1918 00:00 |
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US-1276367-A // Governor for automatic dials. // Harry H. Ide // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Aug 20, 1918 00:00 | US-1276367-A // Governor for automatic dials. // Harry H. Ide // Kellogg Switchboard & Supply | ||||
| PDF File 878265.pdf | 519 kB | Shaun Ewing | Feb 04, 1908 00:00 |
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US-878265-A // Automatic trunking system. // Charles S. Winston // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 519 kB | Shaun Ewing | Feb 04, 1908 00:00 | US-878265-A // Automatic trunking system. // Charles S. Winston // Kellogg Switchboard & Supply | ||||
| PDF File 877089.pdf | 518 kB | Shaun Ewing | Jan 21, 1908 00:00 |
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US-877089-A // Method of making electric condensers. // Frank S. Koch // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 518 kB | Shaun Ewing | Jan 21, 1908 00:00 | US-877089-A // Method of making electric condensers. // Frank S. Koch // Kellogg Switchboard & Supply | ||||
| PDF File 592416.pdf | 512 kB | Shaun Ewing | Oct 26, 1897 00:00 |
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US-592416-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | |||
| Version 1 (current) | 512 kB | Shaun Ewing | Oct 26, 1897 00:00 | US-592416-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | ||||
| PDF File 592399.pdf | 511 kB | Shaun Ewing | Oct 26, 1897 00:00 |
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US-592399-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. | |||
| Version 1 (current) | 511 kB | Shaun Ewing | Oct 26, 1897 00:00 | US-592399-A // Milo g // Milo G. Kellogg, Of Illinois // The Kellogg Switchboard And Supply Company, Of Same Place. |
