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3588581
-
Patent number 3,588,581
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Issue date Jun 28, 1971
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-
2204079
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Patent number 2,204,079
-
Issue date Jun 11, 1940
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-
1953658
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Patent number 1,953,658
-
Issue date Apr 3, 1934
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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1840860
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Patent number 1,840,860
-
Issue date Jan 12, 1932
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1823320
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Patent number 1,823,320
-
Issue date Sep 15, 1931
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1698919
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Patent number 1,698,919
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Issue date Jan 15, 1929
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1698918
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Patent number 1,698,918
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Issue date Jan 15, 1929
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1595776
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Patent number 1,595,776
-
Issue date Aug 10, 1926
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1581408
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Patent number 1,581,408
-
Issue date Apr 20, 1926
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1579058
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Patent number 1,579,058
-
Issue date Mar 30, 1926
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1239759
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Patent number 1,239,759
-
Issue date Sep 11, 1917
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1101629
-
Patent number 1,101,629
-
Issue date Jun 30, 1914
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-
629603
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Patent number 629,603
-
Issue date Jul 25, 1899
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625183
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Patent number 625,183
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Issue date May 16, 1899
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623329
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Patent number 623,329
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Issue date Apr 18, 1899
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621417
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Patent number 621,417
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Issue date Mar 21, 1899
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620996
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Patent number 620,996
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Issue date Mar 14, 1899
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612556
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Patent number 612,556
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Issue date Oct 18, 1898
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602380
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Patent number 602,380
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Issue date Apr 12, 1898
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595936
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Patent number 595,936
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Issue date Dec 21, 1897
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590725
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Patent number 590,725
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Issue date Sep 28, 1897
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565861
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Patent number 565,861
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Issue date Aug 11, 1896
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560387
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Patent number 560,387
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Issue date May 19, 1896
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554542
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Patent number 554,542
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Issue date Feb 11, 1896
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550600
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Patent number 550,600
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Issue date Dec 3, 1895
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550215
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Patent number 550,215
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Issue date Nov 19, 1895
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545359
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Patent number 545,359
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Issue date Aug 27, 1895
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543502
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Patent number 543,502
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Issue date Jul 30, 1895
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538999
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Patent number 538,999
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Issue date May 7, 1895
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535051
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Patent number 535,051
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Issue date Mar 5, 1895
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