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Patent US1627231 - Detector and method of controlling the same - May 3, 1927

Patent - Detector and method of controlling the same - May 1927

Nikola Tesla Transformer Patent  Drawing 5x7 by Steampunkthings, $10.00

Pictures of Nikola Tesla Inventions - Safer Browser Yahoo Bildesøkresultater

Patent US3072832 - Semiconductor structure fabrication - Jan 8, 1963

Patent US3072832 - Semiconductor structure fabrication - Jan 8, 1963

Patent US2170287 - Detachable electrical connector - Aug 22, 1939

Patent US2170287 - Detachable electrical connector - Aug 22, 1939

Patent US1220005 - Wireless signaling system. - Mar 20, 1917

Patent US1220005 - Wireless signaling system. - Mar 20, 1917

Patent US1549032 - Squier's Tree Telephony - Aug 11, 1925

Patent US1549032 - Squier's Tree Telephony - Aug 11, 1925

Patent US2455641 - Grounding pole plate - Dec 7, 1948

Patent US2455641 - Grounding pole plate - Dec 7, 1948

Patent US389124 - Apparatus for utilizing solar radiant energy - Sep 4, 1888

Patent - Apparatus for utilizing solar radiant energy - Sep 1888

Patent US815729 - Transformer. - Mar 20, 1906

Patent US815729 - Transformer. - Mar 20, 1906

Patent US1177180 - Grounding device. - Mar 28, 1916

Patent US1177180 - Grounding device. - Mar 28, 1916

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