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Attachments
| Name | Size | Creator | Creation Date | Labels | Comment | |||
|---|---|---|---|---|---|---|---|---|
| PDF File 1722047.pdf | 698 kB | Shaun Ewing | Jul 23, 1929 00:00 |
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US-1722047-A // System for signaling // Heising Raymond A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 698 kB | Shaun Ewing | Jul 23, 1929 00:00 | US-1722047-A // System for signaling // Heising Raymond A. // Bell Telephone Labor Inc | ||||
| PDF File 1759604.pdf | 687 kB | Shaun Ewing | May 20, 1930 00:00 |
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US-1759604-A // Indicating device // Bjornson Bjorn G. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 687 kB | Shaun Ewing | May 20, 1930 00:00 | US-1759604-A // Indicating device // Bjornson Bjorn G. // Bell Telephone Labor Inc | ||||
| PDF File 1647258.pdf | 685 kB | Shaun Ewing | Nov 01, 1927 00:00 |
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US-1647258-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 685 kB | Shaun Ewing | Nov 01, 1927 00:00 | US-1647258-A // Telephone system // Ulrich Horace W. // Bell Telephone Labor Inc | ||||
| PDF File 1717074.pdf | 683 kB | Shaun Ewing | Jun 11, 1929 00:00 |
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US-1717074-A // Telephone-exchange maintenance system // Taplin Carleton V. ; Allen Louis M. ; Bertels Arnold S. // American Telephone & Telegraph ; Bell Telephone Labor Inc | |||
| Version 1 (current) | 683 kB | Shaun Ewing | Jun 11, 1929 00:00 | US-1717074-A // Telephone-exchange maintenance system // Taplin Carleton V. ; Allen Louis M. ; Bertels Arnold S. // American Telephone & Telegraph ; Bell Telephone Labor Inc | ||||
| PDF File 1733569.pdf | 683 kB | Shaun Ewing | Oct 29, 1929 00:00 |
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US-1733569-A // Telephone-exchange system // Williford Oscar H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 683 kB | Shaun Ewing | Oct 29, 1929 00:00 | US-1733569-A // Telephone-exchange system // Williford Oscar H. // Bell Telephone Labor Inc | ||||
| PDF File 1743415.pdf | 676 kB | Shaun Ewing | Jan 14, 1930 00:00 |
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US-1743415-A // Telephone-exchange system // Wilbur Ray S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 676 kB | Shaun Ewing | Jan 14, 1930 00:00 | US-1743415-A // Telephone-exchange system // Wilbur Ray S. // Bell Telephone Labor Inc | ||||
| PDF File 1756573.pdf | 671 kB | Shaun Ewing | Apr 29, 1930 00:00 |
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US-1756573-A // Regulator system // Stoller Hugh M. ; Porter George C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 671 kB | Shaun Ewing | Apr 29, 1930 00:00 | US-1756573-A // Regulator system // Stoller Hugh M. ; Porter George C. // Bell Telephone Labor Inc | ||||
| PDF File 1778871.pdf | 665 kB | Shaun Ewing | Oct 21, 1930 00:00 |
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US-1778871-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 665 kB | Shaun Ewing | Oct 21, 1930 00:00 | US-1778871-A // Acoustic device // Smythe Edwin H. // Bell Telephone Labor Inc | ||||
| PDF File 1747821.pdf | 655 kB | Shaun Ewing | Feb 18, 1930 00:00 |
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US-1747821-A // Supervisory system // Field Joseph C. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 655 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747821-A // Supervisory system // Field Joseph C. // Bell Telephone Labor Inc | ||||
| PDF File 1747866.pdf | 654 kB | Shaun Ewing | Feb 18, 1930 00:00 |
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US-1747866-A // Sound recording and reproducing machine // Elmer Lloyd A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 654 kB | Shaun Ewing | Feb 18, 1930 00:00 | US-1747866-A // Sound recording and reproducing machine // Elmer Lloyd A. // Bell Telephone Labor Inc | ||||
| PDF File 1742927.pdf | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 |
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US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | |||
| Version 1 (current) | 652 kB | Shaun Ewing | Jan 07, 1930 00:00 | US-1742927-A // Telephone-exchange system // Nicoll Robert I.d. ; Davis Richard C. ; Nostitz Erich Von // Bell Telephone Labor Inc ; American Telephone & Telegraph | ||||
| PDF File 1717062.pdf | 651 kB | Shaun Ewing | Jun 11, 1929 00:00 |
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US-1717062-A // Electric signaling // Phelps Walter A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 651 kB | Shaun Ewing | Jun 11, 1929 00:00 | US-1717062-A // Electric signaling // Phelps Walter A. // Bell Telephone Labor Inc | ||||
| PDF File 1753345.pdf | 651 kB | Shaun Ewing | Apr 08, 1930 00:00 |
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US-1753345-A // Timing circuit // Knoop William A. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 651 kB | Shaun Ewing | Apr 08, 1930 00:00 | US-1753345-A // Timing circuit // Knoop William A. // Bell Telephone Labor Inc | ||||
| PDF File 1722751.pdf | 643 kB | Shaun Ewing | Jul 30, 1929 00:00 |
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US-1722751-A // Optical inspection system // Jones Reginald L. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 643 kB | Shaun Ewing | Jul 30, 1929 00:00 | US-1722751-A // Optical inspection system // Jones Reginald L. // Bell Telephone Labor Inc | ||||
| PDF File 1696274.pdf | 641 kB | Shaun Ewing | Dec 25, 1928 00:00 |
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US-1696274-A // Substation circuits // Johnson Kenneth S. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 641 kB | Shaun Ewing | Dec 25, 1928 00:00 | US-1696274-A // Substation circuits // Johnson Kenneth S. // Bell Telephone Labor Inc | ||||
| PDF File 1695035.pdf | 637 kB | Shaun Ewing | Dec 11, 1928 00:00 |
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US-1695035-A // Electric regulator // Stcller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 637 kB | Shaun Ewing | Dec 11, 1928 00:00 | US-1695035-A // Electric regulator // Stcller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1708936.pdf | 635 kB | Shaun Ewing | Apr 16, 1929 00:00 |
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US-1708936-A // Magnetic material // Cioffi Paul P. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 635 kB | Shaun Ewing | Apr 16, 1929 00:00 | US-1708936-A // Magnetic material // Cioffi Paul P. // Bell Telephone Labor Inc | ||||
| PDF File 1738294.pdf | 630 kB | Shaun Ewing | Dec 03, 1929 00:00 |
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US-1738294-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 630 kB | Shaun Ewing | Dec 03, 1929 00:00 | US-1738294-A // Telephone system // Gooderham John W. // Bell Telephone Labor Inc | ||||
| PDF File 1711661.pdf | 618 kB | Shaun Ewing | May 07, 1929 00:00 |
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US-1711661-A // Regulator system // Stoller Hugh M. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 618 kB | Shaun Ewing | May 07, 1929 00:00 | US-1711661-A // Regulator system // Stoller Hugh M. // Bell Telephone Labor Inc | ||||
| PDF File 1717781.pdf | 618 kB | Shaun Ewing | Jun 18, 1929 00:00 |
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US-1717781-A // Picture-transmission system // Ives Herbert E. // Bell Telephone Labor Inc | |||
| Version 1 (current) | 618 kB | Shaun Ewing | Jun 18, 1929 00:00 | US-1717781-A // Picture-transmission system // Ives Herbert E. // Bell Telephone Labor Inc |
