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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

Maze, Labyrinths

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

Patent - Apparatus for utilizing solar radiant energy - Sep 1888

Patent US5442369 - Toroidal antenna - Aug 15, 1995

Patent US5442369 - Toroidal antenna - Aug 15, 1995

Electromotive Resonator patents

Electromotive Resonator patents

Active Antenna Thoughts

Active Antenna Thoughts

Patente US4460896 - Antenna with tunable helical resonator - 17 jul. 1984

Patente - Antenna with tunable helical resonator - 17 jul.

Patent US2550891 - Bifilar inductor - May 1, 1951

Patent - Bifilar inductor - May 1951

Patent US1758044 - Wave antenna - May 13, 1930

Patent - Wave antenna - May 1930

Patent US3003075 - Infra-red sensitive devices - Oct 3, 1961

Patent US3003075 - Infra-red sensitive devices - Oct 3, 1961

Patent US1987780 - Antenna system - Jan 15, 1935

Patent US1987780 - Antenna system - Jan 15, 1935

Patent US2875443 - Antenna - Feb 24, 1959

Patent US2875443 - Antenna - Feb 24, 1959

Patent US6116544 - Electrodynamic tether and method of use - Sep 12, 2000

Patent - Electrodynamic tether and method of use - Sep 2000

Patent US2149415 - Vertical antenna - Mar 7, 1939

Patent US2149415 - Vertical antenna - Mar 7, 1939

Patent US1554231 - Hysteretic generation of electromagnetic waves - Sep 22, 1925

Patent - Hysteretic generation of electromagnetic waves - Sep 1925

Patent US2649554 - Radiation indicator - Aug 18, 1953

Patent US2649554 - Radiation indicator - Aug 18, 1953

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