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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1810015.pdf | 1.17 MB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1810015-A // Transmission system // Hogg John L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.17 MB | Shaun Ewing | Jun 16, 1931 00:00 | US-1810015-A // Transmission system // Hogg John L. // Bell Telephone Labor Inc | ||||
| PDF File 1810016.pdf | 544 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1810016-A // Voice operated relay circuits // Hogg John L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 544 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1810016-A // Voice operated relay circuits // Hogg John L. // Bell Telephone Labor Inc | ||||
| PDF File 1810024.pdf | 542 kB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1810024-A // Relay circuit // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 542 kB | Shaun Ewing | Jun 16, 1931 00:00 | US-1810024-A // Relay circuit // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1810025.pdf | 1.65 MB | Shaun Ewing | Jun 16, 1931 00:00 |
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US-1810025-A // Transmission system // Mathes Robert C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.65 MB | Shaun Ewing | Jun 16, 1931 00:00 | US-1810025-A // Transmission system // Mathes Robert C. // Bell Telephone Labor Inc | ||||
| PDF File 1811369.pdf | 211 kB | Shaun Ewing | Jun 23, 1931 00:00 |
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US-1811369-A // Guard for guys and the like // John Everett St. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 211 kB | Shaun Ewing | Jun 23, 1931 00:00 | US-1811369-A // Guard for guys and the like // John Everett St. // Bell Telephone Labor Inc | ||||
| PDF File 1811839.pdf | 364 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811839-A // Sound transmission // Arnold Harold D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 364 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811839-A // Sound transmission // Arnold Harold D. // Bell Telephone Labor Inc | ||||
| PDF File 1811841.pdf | 191 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811841-A // Sound reproducing system // Benjamin John C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 191 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811841-A // Sound reproducing system // Benjamin John C. // Bell Telephone Labor Inc | ||||
| PDF File 1811844.pdf | 2.82 MB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811844-A // Automatic telephone exchange system // Dixon Amos F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.82 MB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811844-A // Automatic telephone exchange system // Dixon Amos F. // Bell Telephone Labor Inc | ||||
| PDF File 1811858.pdf | 819 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811858-A // Control system for transmission of signals // Miller Ohmer R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 819 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811858-A // Control system for transmission of signals // Miller Ohmer R. // Bell Telephone Labor Inc | ||||
| PDF File 1811860.pdf | 697 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811860-A // Regulator system // Morton Edmund R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 697 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811860-A // Regulator system // Morton Edmund R. // Bell Telephone Labor Inc | ||||
| PDF File 1811941.pdf | 831 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811941-A // Apparatus for reducing disturbing currents // Keith Clyde R. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 831 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811941-A // Apparatus for reducing disturbing currents // Keith Clyde R. // Bell Telephone Labor Inc | ||||
| PDF File 1811947.pdf | 361 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811947-A // Noise suppressing circuit // Legg Victor E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 361 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811947-A // Noise suppressing circuit // Legg Victor E. // Bell Telephone Labor Inc | ||||
| PDF File 1811963.pdf | 998 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1811963-A // Apparatus for reducing crosstalk currents // Peterson Eugene // Bell Telephone Labor Inc | |||
| Version 1 (current) | 998 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1811963-A // Apparatus for reducing crosstalk currents // Peterson Eugene // Bell Telephone Labor Inc | ||||
| PDF File 1812402.pdf | 761 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812402-A // Electrooptical transmission system // Gray Frank // Bell Telephone Labor Inc | |||
| Version 1 (current) | 761 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812402-A // Electrooptical transmission system // Gray Frank // Bell Telephone Labor Inc | ||||
| PDF File 1812405.pdf | 833 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812405-A // Electrooptical transmission system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 833 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812405-A // Electrooptical transmission system // Ives Herbert E. // Bell Telephone Labor Inc | ||||
| PDF File 1812619.pdf | 227 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812619-A // Sound reproduction // Blattner David G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 227 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812619-A // Sound reproduction // Blattner David G. // Bell Telephone Labor Inc | ||||
| PDF File 1812624.pdf | 473 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812624-A // Telephone and telegraph signaling system // Cummings George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 473 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812624-A // Telephone and telegraph signaling system // Cummings George C. // Bell Telephone Labor Inc | ||||
| PDF File 1812625.pdf | 717 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812625-A // Signal monitoring device // Curtis Austen M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 717 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812625-A // Signal monitoring device // Curtis Austen M. // Bell Telephone Labor Inc | ||||
| PDF File 1812630.pdf | 285 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812630-A // Cable armoring // Gilbert John J. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 285 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812630-A // Cable armoring // Gilbert John J. // Bell Telephone Labor Inc | ||||
| PDF File 1812634.pdf | 123 kB | Shaun Ewing | Jun 30, 1931 00:00 |
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US-1812634-A // Sound reproducer // Jones Warren C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 123 kB | Shaun Ewing | Jun 30, 1931 00:00 | US-1812634-A // Sound reproducer // Jones Warren C. // Bell Telephone Labor Inc |
