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In the matter of the appeal of Edison & Harrington from the decision of the Commissioner of Patents of March 20, 1875, to the secretary of the Interior

In the matter of the appeal of Edison & Harrington from the decision of the Commissioner of Patents of March 20, 1875, to the secretary of the Interior

George B. Prescott

Details

OL Work ID
OL35602807W

Subjects

Trials, litigationTelegraphPatentsDuplex systemQuadruplex systemPatent suits

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