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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1675096.pdf | 829 kB | Shaun Ewing | Jun 26, 1928 00:00 |
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US-1675096-A // Signaling system // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 829 kB | Shaun Ewing | Jun 26, 1928 00:00 | US-1675096-A // Signaling system // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1675874.pdf | 385 kB | Shaun Ewing | Jul 03, 1928 00:00 |
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US-1675874-A // Amplifying electrical variations // Baumann Harold C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 385 kB | Shaun Ewing | Jul 03, 1928 00:00 | US-1675874-A // Amplifying electrical variations // Baumann Harold C. // Bell Telephone Labor Inc | ||||
| PDF File 1675880.pdf | 1.03 MB | Shaun Ewing | Jul 03, 1928 00:00 |
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US-1675880-A // Electric-current transmission // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.03 MB | Shaun Ewing | Jul 03, 1928 00:00 | US-1675880-A // Electric-current transmission // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1675886.pdf | 2.28 MB | Shaun Ewing | Jul 03, 1928 00:00 |
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US-1675886-A // Telephone system // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.28 MB | Shaun Ewing | Jul 03, 1928 00:00 | US-1675886-A // Telephone system // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1676627.pdf | 595 kB | Shaun Ewing | Jul 10, 1928 00:00 |
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US-1676627-A // Method and means for reducing cross talk in carrier-current signaling systems // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 595 kB | Shaun Ewing | Jul 10, 1928 00:00 | US-1676627-A // Method and means for reducing cross talk in carrier-current signaling systems // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 1678103.pdf | 1.43 MB | Shaun Ewing | Jul 24, 1928 00:00 |
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US-1678103-A // Telephone system // Caverly Harry C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.43 MB | Shaun Ewing | Jul 24, 1928 00:00 | US-1678103-A // Telephone system // Caverly Harry C. // Bell Telephone Labor Inc | ||||
| PDF File 1678185.pdf | 727 kB | Shaun Ewing | Jul 24, 1928 00:00 |
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US-1678185-A // Telephone system // Harper Robert W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 727 kB | Shaun Ewing | Jul 24, 1928 00:00 | US-1678185-A // Telephone system // Harper Robert W. // Bell Telephone Labor Inc | ||||
| PDF File 1678190.pdf | 909 kB | Shaun Ewing | Jul 24, 1928 00:00 |
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US-1678190-A // Telephone system // Mortimer Louis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 909 kB | Shaun Ewing | Jul 24, 1928 00:00 | US-1678190-A // Telephone system // Mortimer Louis A. // Bell Telephone Labor Inc | ||||
| PDF File 1678199.pdf | 300 kB | Shaun Ewing | Jul 24, 1928 00:00 |
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US-1678199-A // Oscillation generator // Rettenmeyer Francis X. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 300 kB | Shaun Ewing | Jul 24, 1928 00:00 | US-1678199-A // Oscillation generator // Rettenmeyer Francis X. // Bell Telephone Labor Inc | ||||
| PDF File 1680550.pdf | 763 kB | Shaun Ewing | Aug 14, 1928 00:00 |
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US-1680550-A // Signaling system // Kerr Mark B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 763 kB | Shaun Ewing | Aug 14, 1928 00:00 | US-1680550-A // Signaling system // Kerr Mark B. // Bell Telephone Labor Inc | ||||
| PDF File 1681489.pdf | 2.40 MB | Shaun Ewing | Aug 21, 1928 00:00 |
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US-1681489-A // Signaling system // Locke George A. ; Haglund Hakon H. // Bell Telephone Labor Inc ; Western Union Telegraph Co | |||
| Version 1 (current) | 2.40 MB | Shaun Ewing | Aug 21, 1928 00:00 | US-1681489-A // Signaling system // Locke George A. ; Haglund Hakon H. // Bell Telephone Labor Inc ; Western Union Telegraph Co | ||||
| PDF File 1681510.pdf | 1.64 MB | Shaun Ewing | Aug 21, 1928 00:00 |
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US-1681510-A // Telephone system // Williams Samuel B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.64 MB | Shaun Ewing | Aug 21, 1928 00:00 | US-1681510-A // Telephone system // Williams Samuel B. // Bell Telephone Labor Inc | ||||
| PDF File 1681520.pdf | 1.14 MB | Shaun Ewing | Aug 21, 1928 00:00 |
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US-1681520-A // Trunk circuits // Dahl Jack F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.14 MB | Shaun Ewing | Aug 21, 1928 00:00 | US-1681520-A // Trunk circuits // Dahl Jack F. // Bell Telephone Labor Inc | ||||
| PDF File 1687211.pdf | 425 kB | Shaun Ewing | Oct 09, 1928 00:00 |
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US-1687211-A // Telephone receiver // Jones Warren C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 425 kB | Shaun Ewing | Oct 09, 1928 00:00 | US-1687211-A // Telephone receiver // Jones Warren C. // Bell Telephone Labor Inc | ||||
| PDF File 1687883.pdf | 1.98 MB | Shaun Ewing | Oct 16, 1928 00:00 |
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US-1687883-A // Transmission system // O'Neill Henry W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.98 MB | Shaun Ewing | Oct 16, 1928 00:00 | US-1687883-A // Transmission system // O'Neill Henry W. // Bell Telephone Labor Inc | ||||
| PDF File 1688038.pdf | 320 kB | Shaun Ewing | Oct 16, 1928 00:00 |
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US-1688038-A // Protective device // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 320 kB | Shaun Ewing | Oct 16, 1928 00:00 | US-1688038-A // Protective device // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1688993.pdf | 1.93 MB | Shaun Ewing | Oct 23, 1928 00:00 |
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US-1688993-A // Telephone system // Smith Edmund B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.93 MB | Shaun Ewing | Oct 23, 1928 00:00 | US-1688993-A // Telephone system // Smith Edmund B. // Bell Telephone Labor Inc | ||||
| PDF File 1689030.pdf | 94 kB | Shaun Ewing | Oct 23, 1928 00:00 |
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US-1689030-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 94 kB | Shaun Ewing | Oct 23, 1928 00:00 | US-1689030-A // Acoustic diaphragm // Holland Newman H. // Bell Telephone Labor Inc | ||||
| PDF File 1689318.pdf | 412 kB | Shaun Ewing | Oct 30, 1928 00:00 |
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US-1689318-A // Repeater circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 412 kB | Shaun Ewing | Oct 30, 1928 00:00 | US-1689318-A // Repeater circuits // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1689328.pdf | 2.59 MB | Shaun Ewing | Oct 30, 1928 00:00 |
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US-1689328-A // Submarine telegraph system // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.59 MB | Shaun Ewing | Oct 30, 1928 00:00 | US-1689328-A // Submarine telegraph system // Curtis Austen M. // Bell Telephone Labor Inc |
