Comptograph Co. v. Mechanical Accountant Co.
U.S. Circuit Court for the District of Rhode Island
In Equity. Suit for infringement of letters patent No. 465,255, for a computing machine, granted to D. E. Felt September 15, 1891. On final hearing.
1Opinion of the Court
BROWN, District Judge.
Fetters patent No. 465,255, to D. E. Felt, dated September 15, 1891, are for improvements applicable to recording computing machines, and contain some claims applicable alike to calculating machines which print the result and to machines which do not print, but simply show the result on numeral wheels. The present controversy is now limited to claims 7 and 8, which relate solely to “subtraction cut-offs,” or devices whereby the operator may throw out of operation any one of the carrying mechanisms.
The opinion denying a preliminary injunction is reported in (C. C.) 129…
2Cases cited5 opinions
- United States Peg-Wood, Shank & Leather Board Co. v. B. F. Sturtevant Co.Court of Appeals for the First Circuit · 1903
- Mayo Knitting Machine & Needle Co. v. Jenckes Mfg. Co.U.S. Circuit Court for the District of Rhode Island · 1903
- Colt's Patent Firearms Mfg. Co. v. WessonCourt of Appeals for the First Circuit · 1903
- Mayo Knitting Machine & Needle Co. v. E. Jenckes Mfg. Co.Court of Appeals for the Fifth Circuit · 1904
- Comptograph Co. v. Mechanical Accountant Co.U.S. Circuit Court for the District of Rhode Island · 1904