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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1823659.pdf | 836 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823659-A // Wave transmission system // Miller Robert A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 836 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823659-A // Wave transmission system // Miller Robert A. // Bell Telephone Labor Inc | ||||
| PDF File 1823354.pdf | 4.00 MB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823354-A // High speed submarine cable telegraph system // Dowd Andrew D. ; Kerr Mark B. ; Locke George A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.00 MB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823354-A // High speed submarine cable telegraph system // Dowd Andrew D. ; Kerr Mark B. ; Locke George A. // Bell Telephone Labor Inc | ||||
| PDF File 1823323.pdf | 464 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823323-A // Desk telephone set // Hopkins Irving L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 464 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823323-A // Desk telephone set // Hopkins Irving L. // 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 1823091.pdf | 686 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823091-A // Indicating and recording system // Dahl Jack F. ; Davis Richard C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 686 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823091-A // Indicating and recording system // Dahl Jack F. ; Davis Richard C. // Bell Telephone Labor Inc | ||||
| PDF File 1823088.pdf | 818 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823088-A // Submarine cable repeating system // Clokey Allison A. ; Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 818 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823088-A // Submarine cable repeating system // Clokey Allison A. ; Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1823085.pdf | 202 kB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823085-A // Show case // Campbell Thaddeus C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 202 kB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823085-A // Show case // Campbell Thaddeus C. // Bell Telephone Labor Inc | ||||
| PDF File 1823040.pdf | 4.28 MB | Shaun Ewing | Sept 15, 1931 00:00 |
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US-1823040-A // Call charging telephone exchange system // Hague Alfred E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 4.28 MB | Shaun Ewing | Sept 15, 1931 00:00 | US-1823040-A // Call charging telephone exchange system // Hague Alfred E. // Bell Telephone Labor Inc | ||||
| PDF File 1822535.pdf | 437 kB | Shaun Ewing | Sept 08, 1931 00:00 |
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US-1822535-A // Mounting for vacuum tubes // Lum George R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 437 kB | Shaun Ewing | Sept 08, 1931 00:00 | US-1822535-A // Mounting for vacuum tubes // Lum George R. // Bell Telephone Labor Inc | ||||
| PDF File 1821586.pdf | 977 kB | Shaun Ewing | Sept 01, 1931 00:00 |
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US-1821586-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 977 kB | Shaun Ewing | Sept 01, 1931 00:00 | US-1821586-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 1821076.pdf | 600 kB | Shaun Ewing | Sept 01, 1931 00:00 |
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US-1821076-A // Amplifying system // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 600 kB | Shaun Ewing | Sept 01, 1931 00:00 | US-1821076-A // Amplifying system // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 1819675.pdf | 310 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819675-A // Switch // Chaplin Merle P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 310 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819675-A // Switch // Chaplin Merle P. // Bell Telephone Labor Inc | ||||
| PDF File 1819649.pdf | 885 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819649-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 885 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819649-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1819648.pdf | 1.26 MB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819648-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.26 MB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819648-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1819629.pdf | 704 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819629-A // Vacuum tube circuits // Whiting Donald F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 704 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819629-A // Vacuum tube circuits // Whiting Donald F. // Bell Telephone Labor Inc | ||||
| PDF File 1819614.pdf | 942 kB | Shaun Ewing | Aug 18, 1931 00:00 |
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US-1819614-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 942 kB | Shaun Ewing | Aug 18, 1931 00:00 | US-1819614-A // Wave transmission system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1818568.pdf | 391 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818568-A // Coin collection apparatus // Melick John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 391 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818568-A // Coin collection apparatus // Melick John M. // Bell Telephone Labor Inc | ||||
| PDF File 1818463.pdf | 1.46 MB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818463-A // Zero correcting circuit // Curtis Austen M. ; Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.46 MB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818463-A // Zero correcting circuit // Curtis Austen M. ; Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1818156.pdf | 267 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818156-A // Designation strip // O'Neill Henry W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 267 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818156-A // Designation strip // O'Neill Henry W. // Bell Telephone Labor Inc | ||||
| PDF File 1818099.pdf | 151 kB | Shaun Ewing | Aug 11, 1931 00:00 |
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US-1818099-A // Drive ring // Rapelje John A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 151 kB | Shaun Ewing | Aug 11, 1931 00:00 | US-1818099-A // Drive ring // Rapelje John A. // Bell Telephone Labor Inc |
