Invention Grant
- Patent Title: Operations recorder
- Patent Title (中): 操作记录仪
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Application No.: US25982063Application Date: 1963-02-20
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Publication No.: US3216019APublication Date: 1965-11-02
- Inventor: MELTON JAMES O , CARPENTER IRVIN M
- Applicant: GEOLOGRAPH CO
- Assignee: Siemens AG
- Current Assignee: Siemens AG
- Priority: US25982063 1963-02-20
- Main IPC: G07C3/08
- IPC: G07C3/08
Information query
