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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1237214.pdf | 5.21 MB | Shaun Ewing | Aug 14, 1917 00:00 |
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US-1237214-A // Two-wire automatic telephone system. // George E. Mueller // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.21 MB | Shaun Ewing | Aug 14, 1917 00:00 | US-1237214-A // Two-wire automatic telephone system. // George E. Mueller // Kellogg Switchboard & Supply | ||||
| PDF File 1148665.pdf | 5.20 MB | Shaun Ewing | Aug 03, 1915 00:00 |
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US-1148665-A // Telephone system. // Alfred H. Dyson // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.20 MB | Shaun Ewing | Aug 03, 1915 00:00 | US-1148665-A // Telephone system. // Alfred H. Dyson // Kellogg Switchboard & Supply | ||||
| PDF File 1400590.pdf | 5.20 MB | Shaun Ewing | Dec 20, 1921 00:00 |
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US-1400590-A // Selective telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.20 MB | Shaun Ewing | Dec 20, 1921 00:00 | US-1400590-A // Selective telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | ||||
| PDF File 1594877.pdf | 5.19 MB | Shaun Ewing | Aug 03, 1926 00:00 |
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US-1594877-A // Telephone system // Currier Hiram D. ; Eaton George R. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.19 MB | Shaun Ewing | Aug 03, 1926 00:00 | US-1594877-A // Telephone system // Currier Hiram D. ; Eaton George R. // Kellogg Switchboard & Supply | ||||
| PDF File 1184932.pdf | 5.17 MB | Shaun Ewing | May 30, 1916 00:00 |
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US-1184932-A // Automatic telephone system. // Alfred H. Dyson // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.17 MB | Shaun Ewing | May 30, 1916 00:00 | US-1184932-A // Automatic telephone system. // Alfred H. Dyson // Kellogg Switchboard & Supply | ||||
| PDF File 1602731.pdf | 5.13 MB | Shaun Ewing | Oct 12, 1926 00:00 |
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US-1602731-A // Telephone system // Webster Harry G. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.13 MB | Shaun Ewing | Oct 12, 1926 00:00 | US-1602731-A // Telephone system // Webster Harry G. // Kellogg Switchboard & Supply | ||||
| PDF File 2485351.pdf | 5.12 MB | Shaun Ewing | Oct 18, 1949 00:00 |
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US-2485351-A // Automatic telephone system // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.12 MB | Shaun Ewing | Oct 18, 1949 00:00 | US-2485351-A // Automatic telephone system // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 2365996.pdf | 5.02 MB | Shaun Ewing | Dec 26, 1944 00:00 |
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US-2365996-A // Private branch exchange automatic telephone system // Bakker Pier // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 5.02 MB | Shaun Ewing | Dec 26, 1944 00:00 | US-2365996-A // Private branch exchange automatic telephone system // Bakker Pier // Kellogg Switchboard & Supply | ||||
| PDF File 1270127.pdf | 4.97 MB | Shaun Ewing | Jun 18, 1918 00:00 |
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US-1270127-A // Telephone-exchange system. // Francis W. Dunbar // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.97 MB | Shaun Ewing | Jun 18, 1918 00:00 | US-1270127-A // Telephone-exchange system. // Francis W. Dunbar // Kellogg Switchboard & Supply | ||||
| PDF File 1540061.pdf | 4.96 MB | Shaun Ewing | Jun 02, 1925 00:00 |
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US-1540061-A // Telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.96 MB | Shaun Ewing | Jun 02, 1925 00:00 | US-1540061-A // Telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | ||||
| PDF File 2443945.pdf | 4.92 MB | Shaun Ewing | Jun 22, 1948 00:00 |
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US-2443945-A // Revertive ringing automatic telephone system // Bellamy John I. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.92 MB | Shaun Ewing | Jun 22, 1948 00:00 | US-2443945-A // Revertive ringing automatic telephone system // Bellamy John I. // Kellogg Switchboard & Supply | ||||
| PDF File 1169894.pdf | 4.72 MB | Shaun Ewing | Feb 01, 1916 00:00 |
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US-1169894-A // Automatic telephone system. // Harry G. Webster // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.72 MB | Shaun Ewing | Feb 01, 1916 00:00 | US-1169894-A // Automatic telephone system. // Harry G. Webster // Kellogg Switchboard & Supply | ||||
| PDF File 1184934.pdf | 4.70 MB | Shaun Ewing | May 30, 1916 00:00 |
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US-1184934-A // Telephone system. // Alfred H. Dyson // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.70 MB | Shaun Ewing | May 30, 1916 00:00 | US-1184934-A // Telephone system. // Alfred H. Dyson // 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 1391135.pdf | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 |
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US-1391135-A // Semi-automatic telephone system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 | US-1391135-A // Semi-automatic telephone system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1391136.pdf | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 |
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US-1391136-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.48 MB | Shaun Ewing | Sept 20, 1921 00:00 | US-1391136-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1408125.pdf | 4.38 MB | Shaun Ewing | Feb 28, 1922 00:00 |
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US-1408125-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.38 MB | Shaun Ewing | Feb 28, 1922 00:00 | US-1408125-A // Telephone-exchange system // Mueller George E. // Kellogg Switchboard & Supply | ||||
| PDF File 1540062.pdf | 4.35 MB | Shaun Ewing | Jun 02, 1925 00:00 |
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US-1540062-A // Telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.35 MB | Shaun Ewing | Jun 02, 1925 00:00 | US-1540062-A // Telephone system // Dyson Alfred H. // Kellogg Switchboard & Supply | ||||
| PDF File 1187947.pdf | 4.31 MB | Shaun Ewing | Jun 20, 1916 00:00 |
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US-1187947-A // Call-distributing system for telephone-exchanges. // Alfred H. Weiss // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.31 MB | Shaun Ewing | Jun 20, 1916 00:00 | US-1187947-A // Call-distributing system for telephone-exchanges. // Alfred H. Weiss // Kellogg Switchboard & Supply | ||||
| PDF File 1169736.pdf | 4.27 MB | Shaun Ewing | Jan 25, 1916 00:00 |
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US-1169736-A // Telephone-exchange system. // Fred Schoenwolf // Kellogg Switchboard & Supply | |||
| Version 1 (current) | 4.27 MB | Shaun Ewing | Jan 25, 1916 00:00 | US-1169736-A // Telephone-exchange system. // Fred Schoenwolf // Kellogg Switchboard & Supply |
