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George A. Campbell, application filed March 5, 1900, serial no. 7281 v. Michael I. Pupin, patent issued June 19, 1900, no. 652, 230, application filed Dec. 14, 1899, serial no. 740, 238

George A. Campbell, application filed March 5, 1900, serial no. 7281 v. Michael I. Pupin, patent issued June 19, 1900, no. 652, 230, application filed Dec. 14, 1899, serial no. 740, 238

interference declared Aug. 22, 1900 : record for George A. Campbell

By George A. Campbell,Michael Idvorsky Pupin,United States. Patent Office

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Publish Date

1902

Publisher

Alfred Mudge & Son, Law Printers

Language

eng

Pages

782

1-1 of 1 Editions

George A. Campbell, application filed March 5, 1900, serial no. 7281 v. Michael I. Pupin, patent issued June 19, 1900, no. 652, 230, application filed Dec. 14, 1899, serial no. 740, 238

View George A. Campbell, application filed March 5, 1900, serial no. 7281 v. Michael I. Pupin, patent issued June 19, 1900, no. 652, 230, application filed Dec. 14, 1899, serial no. 740, 238