Invention Grant
- Patent Title: Method of manufacturing ball-retainers.
- Patent Title (中): 制造球保持器的方法。
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Application No.: US1910587198Application Date: 1910-10-15
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Publication No.: US1040274APublication Date: 1912-10-08
- Inventor: CHAMBERS DAVID FRANKLIN
- Applicant: STAR BALL RETAINER COMPANY
- Assignee: Star Ball Retainer Company
- Current Assignee: Star Ball Retainer Company
- Priority: US1910587198 1910-10-15
- Main IPC: F16C33/42
- IPC: F16C33/42
Information query
