Sunday 27 January 2013

PATENTS - 22


PATENTS - 22

1901
700,136 Reversible Galvanic Battery. . . . . . Feb. 18 1901
700,137 Reversible Galvanic Battery. . . . . . Feb. 23 1901
704,304 Reversible Galvanic Battery. . . . . .Feb. 23, 1901
704,305 Reversible Galvanic Battery. . . . . . May 10, 1901
678,722 Reversible Galvanic Battery. . . . . .June 17, 1901
684,205 Reversible Galvanic Battery. . . . . .June 17, 1901
692,507 Reversible Galvanic Battery. . . . . .June 17, 1901
701,804 Reversible Galvanic Battery. . . . . .June 17, 1901
704,306 Reversible Galvanic Battery. . . . . .June 17, 1901
705,829 Reproducer for Sound Records . . . . .Oct. 24, 1901
831,606 Sound Recording Apparatus. . . . . . .Oct. 24, 1901
827,089 Calcining Furnaces . . . . . . . . . .Dec. 24, 1901

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