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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2129011.pdf | 3.76 MB | Shaun Ewing | Sept 06, 1938 00:00 |
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US-2129011-A // Telephone system // Lamberty Frederick R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.76 MB | Shaun Ewing | Sept 06, 1938 00:00 | US-2129011-A // Telephone system // Lamberty Frederick R. // Bell Telephone Labor Inc | ||||
| PDF File 2151091.pdf | 3.64 MB | Shaun Ewing | Mar 21, 1939 00:00 |
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US-2151091-A // Signal transmission // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.64 MB | Shaun Ewing | Mar 21, 1939 00:00 | US-2151091-A // Signal transmission // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2209777.pdf | 3.64 MB | Shaun Ewing | Jul 30, 1940 00:00 |
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US-2209777-A // Telephone system // King Ralph E. ; Miller Ohmer R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.64 MB | Shaun Ewing | Jul 30, 1940 00:00 | US-2209777-A // Telephone system // King Ralph E. ; Miller Ohmer R. // Bell Telephone Labor Inc | ||||
| PDF File 2119209.pdf | 3.63 MB | Shaun Ewing | May 31, 1938 00:00 |
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US-2119209-A // Telephone system // Hall Oliver C. ; Toomey John F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.63 MB | Shaun Ewing | May 31, 1938 00:00 | US-2119209-A // Telephone system // Hall Oliver C. ; Toomey John F. // Bell Telephone Labor Inc | ||||
| PDF File 2224696.pdf | 3.54 MB | Shaun Ewing | Dec 10, 1940 00:00 |
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US-2224696-A // Telephone system // Raymond Ralph // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.54 MB | Shaun Ewing | Dec 10, 1940 00:00 | US-2224696-A // Telephone system // Raymond Ralph // Bell Telephone Labor Inc | ||||
| PDF File 1863139.pdf | 3.52 MB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1863139-A // Time of day announcing system // Massonneau Robert F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.52 MB | Shaun Ewing | Jun 14, 1932 00:00 | US-1863139-A // Time of day announcing system // Massonneau Robert F. // Bell Telephone Labor Inc | ||||
| PDF File 1799214.pdf | 3.49 MB | Shaun Ewing | Apr 07, 1931 00:00 |
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US-1799214-A // Submarine telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.49 MB | Shaun Ewing | Apr 07, 1931 00:00 | US-1799214-A // Submarine telegraph system // Clokey Allison A. // Bell Telephone Labor Inc | ||||
| PDF File 2025389.pdf | 3.36 MB | Shaun Ewing | Dec 24, 1935 00:00 |
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US-2025389-A // Telephone system // Hovland Henry // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.36 MB | Shaun Ewing | Dec 24, 1935 00:00 | US-2025389-A // Telephone system // Hovland Henry // Bell Telephone Labor Inc | ||||
| PDF File 1855598.pdf | 3.33 MB | Shaun Ewing | Apr 26, 1932 00:00 |
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US-1855598-A // Telephone exchange system // Carpenter Warren W. ; Collis Raymond E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.33 MB | Shaun Ewing | Apr 26, 1932 00:00 | US-1855598-A // Telephone exchange system // Carpenter Warren W. ; Collis Raymond E. // Bell Telephone Labor Inc | ||||
| PDF File 1816634.pdf | 3.32 MB | Shaun Ewing | Jul 28, 1931 00:00 |
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US-1816634-A // Telephone exchange system // Carpenter Warren W. ; Dahl Jack F. ; Davis Richard C. ; Kittredge Linus E. // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 3.32 MB | Shaun Ewing | Jul 28, 1931 00:00 | US-1816634-A // Telephone exchange system // Carpenter Warren W. ; Dahl Jack F. ; Davis Richard C. ; Kittredge Linus E. // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1968420.pdf | 3.28 MB | Shaun Ewing | Jul 31, 1934 00:00 |
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US-1968420-A // Telephone system // Powell Albert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.28 MB | Shaun Ewing | Jul 31, 1934 00:00 | US-1968420-A // Telephone system // Powell Albert C. // Bell Telephone Labor Inc | ||||
| PDF File 1862519.pdf | 3.28 MB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1862519-A // Time of day announcing system // Brown Horatio G. W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.28 MB | Shaun Ewing | Jun 14, 1932 00:00 | US-1862519-A // Time of day announcing system // Brown Horatio G. W. // Bell Telephone Labor Inc | ||||
| PDF File 1863137.pdf | 3.27 MB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1863137-A // Time of day announcing system // Keckler Charles W. ; Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.27 MB | Shaun Ewing | Jun 14, 1932 00:00 | US-1863137-A // Time of day announcing system // Keckler Charles W. ; Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1823120.pdf | 3.27 MB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823120-A // Signaling and communication system // O'Neill Henry W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.27 MB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823120-A // Signaling and communication system // O'Neill Henry W. // Bell Telephone Labor Inc | ||||
| PDF File 2021286.pdf | 3.27 MB | Shaun Ewing | Nov 19, 1935 00:00 |
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US-2021286-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.27 MB | Shaun Ewing | Nov 19, 1935 00:00 | US-2021286-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | ||||
| PDF File 2096819.pdf | 3.26 MB | Shaun Ewing | Oct 26, 1937 00:00 |
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US-2096819-A // Communication system // Myers Oscar // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.26 MB | Shaun Ewing | Oct 26, 1937 00:00 | US-2096819-A // Communication system // Myers Oscar // Bell Telephone Labor Inc | ||||
| PDF File 1840364.pdf | 3.25 MB | Shaun Ewing | Jan 12, 1932 00:00 |
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US-1840364-A // Telephone dial system // Irvine Frank S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.25 MB | Shaun Ewing | Jan 12, 1932 00:00 | US-1840364-A // Telephone dial system // Irvine Frank S. // Bell Telephone Labor Inc | ||||
| PDF File 1808577.pdf | 3.25 MB | Shaun Ewing | Jun 02, 1931 00:00 |
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US-1808577-A // Automatic telephone exchange system // Scudder Frederick J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.25 MB | Shaun Ewing | Jun 02, 1931 00:00 | US-1808577-A // Automatic telephone exchange system // Scudder Frederick J. // Bell Telephone Labor Inc | ||||
| PDF File 2121419.pdf | 3.19 MB | Shaun Ewing | Jun 21, 1938 00:00 |
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US-2121419-A // Call distributing telephone system // Blake Foster B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.19 MB | Shaun Ewing | Jun 21, 1938 00:00 | US-2121419-A // Call distributing telephone system // Blake Foster B. // Bell Telephone Labor Inc | ||||
| PDF File 2141372.pdf | 3.13 MB | Shaun Ewing | Dec 27, 1938 00:00 |
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US-2141372-A // Telephone system // Baumfalk John // Bell Telephone Labor Inc | |||
| Version 1 (current) | 3.13 MB | Shaun Ewing | Dec 27, 1938 00:00 | US-2141372-A // Telephone system // Baumfalk John // Bell Telephone Labor Inc |
