Showing 1 - 20 results of 25 for search '"Power, James R."', query time: 1.86s Refine Results  

TELEPHONE RINGER

by JAMES R. POWER
Year of Publication 11.11.1952
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Patent

Telephone ringer

by POWER JAMES R
Year of Publication 03.04.1951
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Patent

Rectifier system

by POWER JAMES R
Year of Publication 05.04.1938
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Patent

Signaling device

by POWER JAMES R
Year of Publication 07.07.1936
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Patent

Voltage regulator

by POWER JAMES R
Year of Publication 02.04.1935
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Patent