Name Size Creator Creation Date Labels Comment  
PDF File 2017438.pdf 245 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017438-A // Impulse transmitter // Goff Harold W. // Bell Telephone Labor Inc
PDF File 2017633.pdf 424 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017633-A // Record display device // Mottram Elliott T. // Bell Telephone Labor Inc
PDF File 2017636.pdf 283 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017636-A // Stationery guiding instrumentality // Smalley Merwin N. // Bell Telephone Labor Inc
PDF File 2017644.pdf 3.02 MB Shaun Ewing Oct 15, 1935 00:00
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US-2017644-A // Service observation system // Allen Lawrence H. ; Massonneau Robert F. // Bell Telephone Labor Inc
PDF File 2017645.pdf 822 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017645-A // Volume control system // Barney Harold L. // Bell Telephone Labor Inc
PDF File 2017647.pdf 276 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017647-A // Electron discharge device // Betts Walter L. // Bell Telephone Labor Inc
PDF File 2017653.pdf 368 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017653-A // Velocity comparing system for film driving apparatus // Clarke Carole A. ; Elmer Lloyd A. // Bell Telephone Labor Inc
PDF File 2017654.pdf 1.31 MB Shaun Ewing Oct 15, 1935 00:00
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US-2017654-A // Gain control circuit // Coy Jay A. ; Romnes Haakon I. // Bell Telephone Labor Inc
PDF File 2017657.pdf 355 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017657-A // Continuously loaded conductor // Harris James E. // Bell Telephone Labor Inc
PDF File 2017659.pdf 352 kB Shaun Ewing Oct 15, 1935 00:00
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US-2017659-A // Electrooptical system // Ives Herbert E. // Bell Telephone Labor Inc
PDF File 2018374.pdf 859 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018374-A // Sound recording system // Macnair Walter A. // 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
PDF File 2018464.pdf 915 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018464-A // Voice operated transmission circuit // Nebel Charles N. // Bell Telephone Labor Inc
PDF File 2018465.pdf 402 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018465-A // Voice operated switching circuit // Nebel Charles N. // Bell Telephone Labor Inc
PDF File 2018466.pdf 292 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018466-A // Sound reproducing system // O'Neil Horace T. ; Dunn Hugh K. // Bell Telephone Labor Inc
PDF File 2018471.pdf 261 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018471-A // Electroplating upon a metallized surface // Russell Alexander G. // Bell Telephone Labor Inc
PDF File 2018477.pdf 450 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018477-A // Coaxial conductor system // Wentz Jesse F. // Bell Telephone Labor Inc
PDF File 2018489.pdf 1.01 MB Shaun Ewing Oct 22, 1935 00:00
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US-2018489-A // Signal transmission system // Jr. Stephen Doba, // Bell Telephone Labor Inc
PDF File 2018494.pdf 575 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018494-A // Transmission control circuit // Hearn Richard B. // Bell Telephone Labor Inc
PDF File 2018496.pdf 793 kB Shaun Ewing Oct 22, 1935 00:00
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US-2018496-A // Recorder stylus // Keller Arthur C. // Bell Telephone Labor Inc
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