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Patent adding machine case pits Hopkins against Dement in court
In a 20 year old patent dispute in St Louis federal court, Hubert Hopkins of Troy and Isaac S Dement of Dayton, rival inventors of adding machines, faced injunctions and appeals as Burroughs and NCR had acquired their interests. The case began in 1903 with Hopkins gaining eventual recognition as inventor after a long legal saga. The outcome affects large corporate rights in a key business machine.
MENTIONED IN THIS ARTICLE
H. D. Robinson
ST. Louis
United States District Court
Hubert Hopkins
Troy
Isaac S. Dement
Dayton
Ohio
Dement
Hopkins
United States
Jidge Faris
Burroughs Adding Machine Company
Detroit
National Cash Register Company
Davion
Patent Board
Court of Appeals of the
District of Columbia
District Court