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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1919046.pdf | 891 kB | Shaun Ewing | Jul 18, 1933 00:00 |
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US-1919046-A // Selective calling circuits // Scriven Edward O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 891 kB | Shaun Ewing | Jul 18, 1933 00:00 | US-1919046-A // Selective calling circuits // Scriven Edward O. // Bell Telephone Labor Inc | ||||
| PDF File 1919795.pdf | 527 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919795-A // Subharmonic frequency producer // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 527 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919795-A // Subharmonic frequency producer // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1919796.pdf | 427 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919796-A // Mechanical vibrating element // Marrison Warren A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 427 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919796-A // Mechanical vibrating element // Marrison Warren A. // Bell Telephone Labor Inc | ||||
| PDF File 1919799.pdf | 319 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919799-A // Telephone pay station receptacle // Melick John M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 319 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919799-A // Telephone pay station receptacle // Melick John M. // Bell Telephone Labor Inc | ||||
| PDF File 1919803.pdf | 973 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919803-A // Measuring and indicating system // Roetken Alfred A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 973 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919803-A // Measuring and indicating system // Roetken Alfred A. // Bell Telephone Labor Inc | ||||
| PDF File 1919804.pdf | 793 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919804-A // Transmission of sound and images // Ryan Francis M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 793 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919804-A // Transmission of sound and images // Ryan Francis M. // Bell Telephone Labor Inc | ||||
| PDF File 1919808.pdf | 581 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919808-A // Power supply system // Siegmund Humphreys O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 581 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919808-A // Power supply system // Siegmund Humphreys O. // Bell Telephone Labor Inc | ||||
| PDF File 1919814.pdf | 469 kB | Shaun Ewing | Jul 25, 1933 00:00 |
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US-1919814-A // Electric control system // Trucksess David E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 469 kB | Shaun Ewing | Jul 25, 1933 00:00 | US-1919814-A // Electric control system // Trucksess David E. // Bell Telephone Labor Inc | ||||
| PDF File 1920238.pdf | 2.17 MB | Shaun Ewing | Aug 01, 1933 00:00 |
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US-1920238-A // Wave translating system // Black Harold S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 2.17 MB | Shaun Ewing | Aug 01, 1933 00:00 | US-1920238-A // Wave translating system // Black Harold S. // Bell Telephone Labor Inc | ||||
| PDF File 1920274.pdf | 1.24 MB | Shaun Ewing | Aug 01, 1933 00:00 |
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US-1920274-A // Wave translating system // Pidgeon Howard A. ; Mcnally James O. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 1.24 MB | Shaun Ewing | Aug 01, 1933 00:00 | US-1920274-A // Wave translating system // Pidgeon Howard A. ; Mcnally James O. // Bell Telephone Labor Inc | ||||
| PDF File 1920964.pdf | 580 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1920964-A // Electrodeposition of alloys // Burns Robert M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 580 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1920964-A // Electrodeposition of alloys // Burns Robert M. // Bell Telephone Labor Inc | ||||
| PDF File 1921004.pdf | 409 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921004-A // Gaseous discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 409 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921004-A // Gaseous discharge device // Samuel Arthur L. // Bell Telephone Labor Inc | ||||
| PDF File 1921022.pdf | 333 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921022-A // Submarine cable signaling system // Burton Everett T. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 333 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921022-A // Submarine cable signaling system // Burton Everett T. // Bell Telephone Labor Inc | ||||
| PDF File 1921024.pdf | 826 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921024-A // Alarm system // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 826 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921024-A // Alarm system // Field Joseph C. // Bell Telephone Labor Inc | ||||
| PDF File 1921035.pdf | 601 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921035-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 601 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921035-A // Wave filter // Mason Warren P. // Bell Telephone Labor Inc | ||||
| PDF File 1921065.pdf | 339 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921065-A // Electron emitter and process of making same // Becker Joseph A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 339 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921065-A // Electron emitter and process of making same // Becker Joseph A. // Bell Telephone Labor Inc | ||||
| PDF File 1921404.pdf | 634 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921404-A // Continuous film processing machine // Crabtree James // Bell Telephone Labor Inc | |||
| Version 1 (current) | 634 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921404-A // Continuous film processing machine // Crabtree James // Bell Telephone Labor Inc | ||||
| PDF File 1921409.pdf | 499 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921409-A // Telephone system // Hinrichsen Edward E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 499 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921409-A // Telephone system // Hinrichsen Edward E. // Bell Telephone Labor Inc | ||||
| PDF File 1921425.pdf | 516 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921425-A // Polar relay circuit // Nebel Charles N. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 516 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921425-A // Polar relay circuit // Nebel Charles N. // Bell Telephone Labor Inc | ||||
| PDF File 1921430.pdf | 548 kB | Shaun Ewing | Aug 08, 1933 00:00 |
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US-1921430-A // Electromagnetic switching device // Reynolds John N. ; Dobbin Henry F. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 548 kB | Shaun Ewing | Aug 08, 1933 00:00 | US-1921430-A // Electromagnetic switching device // Reynolds John N. ; Dobbin Henry F. // Bell Telephone Labor Inc |
