Invention Grant
- Patent Title: Calculator
-
Application No.: US48139643Application Date: 1943-04-01
-
Publication No.: US2443882APublication Date: 1948-06-22
- Inventor: ALLEN WALLACE T
- Applicant: SQUARE D CO
- Assignee: Shell Austria GmbH
- Current Assignee: Shell Austria GmbH
- Priority: US48139643 1943-04-01
- Main IPC: G06G1/14
- IPC: G06G1/14
Information query
