Invention Grant
- Patent Title: Ball-clutch for arc-lamps.
- Patent Title (中): 弧形离合器。
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Application No.: US1908443975Application Date: 1908-07-17
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Publication No.: US948293APublication Date: 1910-02-01
- Inventor: BEECHLYN JOHN T
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US1908443975 1908-07-17
Information query
