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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 2414477.pdf | 1.35 MB | Shaun Ewing | Jan 21, 1947 00:00 |
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US-2414477-A // Indicating apparatus // Meacham Larned A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Jan 21, 1947 00:00 | US-2414477-A // Indicating apparatus // Meacham Larned A. // Bell Telephone Labor Inc | ||||
| PDF File 2422677.pdf | 1.35 MB | Shaun Ewing | Jun 24, 1947 00:00 |
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US-2422677-A // Intermediate telegraph repeater for long line spans // Hearn Richard B. ; Sutliff Carleton B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Jun 24, 1947 00:00 | US-2422677-A // Intermediate telegraph repeater for long line spans // Hearn Richard B. ; Sutliff Carleton B. // Bell Telephone Labor Inc | ||||
| PDF File 2499606.pdf | 1.35 MB | Shaun Ewing | Mar 07, 1950 00:00 |
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US-2499606-A // Preset type telephone dialer with pulse generating transformers // Parkinson David B. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Mar 07, 1950 00:00 | US-2499606-A // Preset type telephone dialer with pulse generating transformers // Parkinson David B. // Bell Telephone Labor Inc | ||||
| PDF File 2438119.pdf | 1.35 MB | Shaun Ewing | Mar 23, 1948 00:00 |
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US-2438119-A // Wave transmission // Fox Arthur Gardner // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.35 MB | Shaun Ewing | Mar 23, 1948 00:00 | US-2438119-A // Wave transmission // Fox Arthur Gardner // Bell Telephone Labor Inc | ||||
| PDF File 2392089.pdf | 1.34 MB | Shaun Ewing | Jan 01, 1946 00:00 |
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US-2392089-A // Switching system // Hersey Ralph E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Jan 01, 1946 00:00 | US-2392089-A // Switching system // Hersey Ralph E. // Bell Telephone Labor Inc | ||||
| PDF File 2434959.pdf | 1.34 MB | Shaun Ewing | Jan 27, 1948 00:00 |
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US-2434959-A // Call transmitter for interstate telephone communication // Richard Charles D. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Jan 27, 1948 00:00 | US-2434959-A // Call transmitter for interstate telephone communication // Richard Charles D. // Bell Telephone Labor Inc | ||||
| PDF File 2484643.pdf | 1.34 MB | Shaun Ewing | Oct 11, 1949 00:00 |
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US-2484643-A // High-frequency electronic device // Peterson Liss C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.34 MB | Shaun Ewing | Oct 11, 1949 00:00 | US-2484643-A // High-frequency electronic device // Peterson Liss C. // Bell Telephone Labor Inc | ||||
| PDF File 2466904.pdf | 1.33 MB | Shaun Ewing | Apr 12, 1949 00:00 |
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US-2466904-A // Stabilized oscillator // Lundstrom Alexis A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Apr 12, 1949 00:00 | US-2466904-A // Stabilized oscillator // Lundstrom Alexis A. // Bell Telephone Labor Inc | ||||
| PDF File 2484612.pdf | 1.33 MB | Shaun Ewing | Oct 11, 1949 00:00 |
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US-2484612-A // Directory number calling line identifier // Dehn Joseph W. ; Holden William H. T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Oct 11, 1949 00:00 | US-2484612-A // Directory number calling line identifier // Dehn Joseph W. ; Holden William H. T. // Bell Telephone Labor Inc | ||||
| PDF File 2463236.pdf | 1.33 MB | Shaun Ewing | Mar 01, 1949 00:00 |
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US-2463236-A // Secret telegraph system // Bacon Walter M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.33 MB | Shaun Ewing | Mar 01, 1949 00:00 | US-2463236-A // Secret telegraph system // Bacon Walter M. // Bell Telephone Labor Inc | ||||
| PDF File 2484611.pdf | 1.32 MB | Shaun Ewing | Oct 11, 1949 00:00 |
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US-2484611-A // Frequency divider // Davis Kingsbury H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Oct 11, 1949 00:00 | US-2484611-A // Frequency divider // Davis Kingsbury H. // Bell Telephone Labor Inc | ||||
| PDF File 2451465.pdf | 1.32 MB | Shaun Ewing | Oct 19, 1948 00:00 |
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US-2451465-A // Transversal filter // Barney Harold L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Oct 19, 1948 00:00 | US-2451465-A // Transversal filter // Barney Harold L. // Bell Telephone Labor Inc | ||||
| PDF File 2517587.pdf | 1.32 MB | Shaun Ewing | Aug 08, 1950 00:00 |
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US-2517587-A // Secret message transmission system // Mohr Milton E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Aug 08, 1950 00:00 | US-2517587-A // Secret message transmission system // Mohr Milton E. // Bell Telephone Labor Inc | ||||
| PDF File 2408100.pdf | 1.32 MB | Shaun Ewing | Sept 24, 1946 00:00 |
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US-2408100-A // Telegraph permutation code signal translator // Shipley Frank F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.32 MB | Shaun Ewing | Sept 24, 1946 00:00 | US-2408100-A // Telegraph permutation code signal translator // Shipley Frank F. // Bell Telephone Labor Inc | ||||
| PDF File 2534564.pdf | 1.31 MB | Shaun Ewing | Dec 19, 1950 00:00 |
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US-2534564-A // Ringer test circuit controlled from station under test // Wadsworth Paul W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.31 MB | Shaun Ewing | Dec 19, 1950 00:00 | US-2534564-A // Ringer test circuit controlled from station under test // Wadsworth Paul W. // Bell Telephone Labor Inc | ||||
| PDF File 2446674.pdf | 1.31 MB | Shaun Ewing | Aug 10, 1948 00:00 |
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US-2446674-A // Cathode-ray device mounting // Sproul Philip T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.31 MB | Shaun Ewing | Aug 10, 1948 00:00 | US-2446674-A // Cathode-ray device mounting // Sproul Philip T. // Bell Telephone Labor Inc | ||||
| PDF File 2508526.pdf | 1.31 MB | Shaun Ewing | May 23, 1950 00:00 |
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US-2508526-A // Telephone signal transmitter // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.31 MB | Shaun Ewing | May 23, 1950 00:00 | US-2508526-A // Telephone signal transmitter // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 2454328.pdf | 1.30 MB | Shaun Ewing | Nov 23, 1948 00:00 |
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US-2454328-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Nov 23, 1948 00:00 | US-2454328-A // Piezoelectric crystal apparatus // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 2415420.pdf | 1.30 MB | Shaun Ewing | Feb 11, 1947 00:00 |
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US-2415420-A // Telegraph trunk circuit // Dahlbom Carl A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Feb 11, 1947 00:00 | US-2415420-A // Telegraph trunk circuit // Dahlbom Carl A. // Bell Telephone Labor Inc | ||||
| PDF File 2530836.pdf | 1.30 MB | Shaun Ewing | Nov 21, 1950 00:00 |
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US-2530836-A // Grounded grid microwave modulator // Mumford William W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.30 MB | Shaun Ewing | Nov 21, 1950 00:00 | US-2530836-A // Grounded grid microwave modulator // Mumford William W. // Bell Telephone Labor Inc |
