Invention Grant
- Patent Title: Sight gauge
- Patent Title (中): 视力表
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Application No.: US2137660Application Date: 1960-04-11
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Publication No.: US3069908APublication Date: 1962-12-25
- Inventor: LONN HAROLD J
- Applicant: GEN CONTROLS CO
- Assignee: Gen Controls Co
- Current Assignee: Gen Controls Co
- Priority: US2137660 1960-04-11
- Main IPC: G01F23/02
- IPC: G01F23/02 ; G01P13/00
Information query
