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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2126875.pdf | 2.02 MB | Shaun Ewing | Aug 16, 1938 00:00 |
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US-2126875-A // Selection controlling apparatus for telephone systems // Dimond Thomas L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.02 MB | Shaun Ewing | Aug 16, 1938 00:00 | US-2126875-A // Selection controlling apparatus for telephone systems // Dimond Thomas L. // Bell Telephone Labor Inc | ||||
| PDF File 2112375.pdf | 2.01 MB | Shaun Ewing | Mar 29, 1938 00:00 |
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US-2112375-A // Timing mechanism // Mead Edward D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.01 MB | Shaun Ewing | Mar 29, 1938 00:00 | US-2112375-A // Timing mechanism // Mead Edward D. // Bell Telephone Labor Inc | ||||
| PDF File 1849662.pdf | 1.99 MB | Shaun Ewing | Mar 15, 1932 00:00 |
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US-1849662-A // Telephone exchange system // Dunham Bert G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.99 MB | Shaun Ewing | Mar 15, 1932 00:00 | US-1849662-A // Telephone exchange system // Dunham Bert G. // Bell Telephone Labor Inc | ||||
| PDF File 2097165.pdf | 1.99 MB | Shaun Ewing | Oct 26, 1937 00:00 |
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US-2097165-A // Telephone system // Bell John H // Grace Macdonald Stokely ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.99 MB | Shaun Ewing | Oct 26, 1937 00:00 | US-2097165-A // Telephone system // Bell John H // Grace Macdonald Stokely ; Bell Telephone Labor Inc | ||||
| PDF File 2055652.pdf | 1.99 MB | Shaun Ewing | Sept 29, 1936 00:00 |
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US-2055652-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.99 MB | Shaun Ewing | Sept 29, 1936 00:00 | US-2055652-A // Telephone system // Butz Edward D. // Bell Telephone Labor Inc | ||||
| PDF File 1863089.pdf | 1.98 MB | Shaun Ewing | Jun 14, 1932 00:00 |
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US-1863089-A // Remote control system // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.98 MB | Shaun Ewing | Jun 14, 1932 00:00 | US-1863089-A // Remote control system // Field Joseph C. // Bell Telephone Labor Inc | ||||
| PDF File 1795813.pdf | 1.97 MB | Shaun Ewing | Mar 10, 1931 00:00 |
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US-1795813-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.97 MB | Shaun Ewing | Mar 10, 1931 00:00 | US-1795813-A // Telephone system // Whitney Wiley // Bell Telephone Labor Inc | ||||
| PDF File 1881669.pdf | 1.96 MB | Shaun Ewing | Oct 11, 1932 00:00 |
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US-1881669-A // Telephone system // King Gerald V. ; Bonomi Felix A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.96 MB | Shaun Ewing | Oct 11, 1932 00:00 | US-1881669-A // Telephone system // King Gerald V. ; Bonomi Felix A. // Bell Telephone Labor Inc | ||||
| PDF File 2213991.pdf | 1.96 MB | Shaun Ewing | Sept 10, 1940 00:00 |
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US-2213991-A // Control of transmission in two-way telephone systems // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.96 MB | Shaun Ewing | Sept 10, 1940 00:00 | US-2213991-A // Control of transmission in two-way telephone systems // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 1946228.pdf | 1.95 MB | Shaun Ewing | Feb 06, 1934 00:00 |
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US-1946228-A // Telephone system // Mckim James B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Feb 06, 1934 00:00 | US-1946228-A // Telephone system // Mckim James B. // Bell Telephone Labor Inc | ||||
| PDF File 2071075.pdf | 1.95 MB | Shaun Ewing | Feb 16, 1937 00:00 |
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US-2071075-A // Telephone system // Koechling Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Feb 16, 1937 00:00 | US-2071075-A // Telephone system // Koechling Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 2211176.pdf | 1.95 MB | Shaun Ewing | Aug 13, 1940 00:00 |
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US-2211176-A // Telegraphic line circuit // Singer Fred J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Aug 13, 1940 00:00 | US-2211176-A // Telegraphic line circuit // Singer Fred J. // Bell Telephone Labor Inc | ||||
| PDF File 2018457.pdf | 1.95 MB | Shaun Ewing | Oct 22, 1935 00:00 |
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US-2018457-A // Telephone system // King Gerald V. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Oct 22, 1935 00:00 | US-2018457-A // Telephone system // King Gerald V. // Bell Telephone Labor Inc | ||||
| PDF File 2152769.pdf | 1.95 MB | Shaun Ewing | Apr 04, 1939 00:00 |
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US-2152769-A // Telephone system // Newby Neal D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.95 MB | Shaun Ewing | Apr 04, 1939 00:00 | US-2152769-A // Telephone system // Newby Neal D. // Bell Telephone Labor Inc | ||||
| PDF File 2147717.pdf | 1.93 MB | Shaun Ewing | Feb 21, 1939 00:00 |
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US-2147717-A // Guided wave transmission // Schelkunoff Sergel A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.93 MB | Shaun Ewing | Feb 21, 1939 00:00 | US-2147717-A // Guided wave transmission // Schelkunoff Sergel A. // Bell Telephone Labor Inc | ||||
| PDF File 1832366.pdf | 1.91 MB | Shaun Ewing | Nov 17, 1931 00:00 |
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US-1832366-A // Electrical communication system // Dudley Homer W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.91 MB | Shaun Ewing | Nov 17, 1931 00:00 | US-1832366-A // Electrical communication system // Dudley Homer W. // Bell Telephone Labor Inc | ||||
| PDF File 2031980.pdf | 1.90 MB | Shaun Ewing | Feb 25, 1936 00:00 |
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US-2031980-A // Gain control circuit // Romnes Haakon I. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.90 MB | Shaun Ewing | Feb 25, 1936 00:00 | US-2031980-A // Gain control circuit // Romnes Haakon I. // Bell Telephone Labor Inc | ||||
| PDF File 2204762.pdf | 1.90 MB | Shaun Ewing | Jun 18, 1940 00:00 |
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US-2204762-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.90 MB | Shaun Ewing | Jun 18, 1940 00:00 | US-2204762-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2129860.pdf | 1.90 MB | Shaun Ewing | Sept 13, 1938 00:00 |
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US-2129860-A // Privacy system // Mitchell Doren // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.90 MB | Shaun Ewing | Sept 13, 1938 00:00 | US-2129860-A // Privacy system // Mitchell Doren // Bell Telephone Labor Inc | ||||
| PDF File 2198326.pdf | 1.89 MB | Shaun Ewing | Apr 23, 1940 00:00 |
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US-2198326-A // Program switching system // Bachelet Albert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.89 MB | Shaun Ewing | Apr 23, 1940 00:00 | US-2198326-A // Program switching system // Bachelet Albert E. // Bell Telephone Labor Inc |
