Name Size Creator Creation Date Labels Comment  
PDF File 2425818.pdf 870 kB Shaun Ewing Aug 19, 1947 00:00
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US-2425818-A // Signaling apparatus // Neiswinter James T. // American Telephone & Telegraph
PDF File 2425801.pdf 957 kB Shaun Ewing Aug 19, 1947 00:00
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US-2425801-A // Signaling system // Hanley Frank Harold // American Telephone & Telegraph
PDF File 2421970.pdf 1.34 MB Shaun Ewing Jun 10, 1947 00:00
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US-2421970-A // Earth boring machine // Smith Temple C. // American Telephone & Telegraph
PDF File 2421954.pdf 660 kB Shaun Ewing Jun 10, 1947 00:00
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US-2421954-A // Apparatus for indicating teletypewriter speeds // Martin Wade B. // American Telephone & Telegraph
PDF File 2421943.pdf 324 kB Shaun Ewing Jun 10, 1947 00:00
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US-2421943-A // Telephone traffic indicating apparatus // Hill Edward Weathers // American Telephone & Telegraph
PDF File 2421919.pdf 1.79 MB Shaun Ewing Jun 10, 1947 00:00
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US-2421919-A // Telephone routing system // Avery Robert Campbell // American Telephone & Telegraph
PDF File 2418424.pdf 551 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418424-A // Electrical measuring device // Plym Lester Marshall // American Telephone & Telegraph
PDF File 2418406.pdf 1.11 MB Shaun Ewing Apr 01, 1947 00:00
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US-2418406-A // Selective signaling system // Hanley Frank Harold // American Telephone & Telegraph
PDF File 2418401.pdf 513 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418401-A // Testing system for nontyping selectors // Foley Daniel Elmore ; Johnson Walter Daniel // American Telephone & Telegraph
PDF File 2418395.pdf 574 kB Shaun Ewing Apr 01, 1947 00:00
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US-2418395-A // Control apparatus for forced drainage // Carlson Eric Gustav // American Telephone & Telegraph
PDF File 2414624.pdf 561 kB Shaun Ewing Jan 21, 1947 00:00
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US-2414624-A // Apparatus for testing transmission lines // Fisher Austin // American Telephone & Telegraph
PDF File 2414612.pdf 919 kB Shaun Ewing Jan 21, 1947 00:00
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US-2414612-A // Testing insulation // Ross Claude M. // American Telephone & Telegraph
PDF File 2414609.pdf 634 kB Shaun Ewing Jan 21, 1947 00:00
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US-2414609-A // Electrical testing system // Rheubottom Willard C. // American Telephone & Telegraph
PDF File 2409632.pdf 587 kB Shaun Ewing Oct 22, 1946 00:00
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US-2409632-A // Guiding means for self-propelled torpedoes // King Robert W. // American Telephone & Telegraph
PDF File 2408304.pdf 750 kB Shaun Ewing Sept 24, 1946 00:00
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US-2408304-A // Telegraph repeater system // Fay Frank Homer ; Reeve Elmer William // American Telephone & Telegraph
PDF File 2408299.pdf 352 kB Shaun Ewing Sept 24, 1946 00:00
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US-2408299-A // Selective signaling system // Davis Rowland Fenner // American Telephone & Telegraph
PDF File 2405339.pdf 945 kB Shaun Ewing Aug 06, 1946 00:00
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US-2405339-A // Equipment for observing dial tone speed // Willis Milton Powell // American Telephone & Telegraph
PDF File 2405332.pdf 653 kB Shaun Ewing Aug 06, 1946 00:00
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US-2405332-A // Toll telephone diversion system // Schroeppel Harold Henry // American Telephone & Telegraph
PDF File 2405281.pdf 510 kB Shaun Ewing Aug 06, 1946 00:00
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US-2405281-A // Object locater // Bemis Edwin Walter // American Telephone & Telegraph
PDF File 2403888.pdf 2.37 MB Shaun Ewing Jul 09, 1946 00:00
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US-2403888-A // Enciphering and deciphering system // Cronburg Claude Irving // American Telephone & Telegraph
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