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
United States. Patent Office, Michael Idvorsky Pupin, George A. Campbell
Details
- OL Work ID
- OL44923268W
Subjects
Trials, litigationPatent laws and legislation