Invention Grant
- Patent Title: Caster lock
- Patent Title (中): 脚轮锁
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Application No.: US35638520Application Date: 1920-02-05
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Publication No.: US1428932APublication Date: 1922-09-12
- Inventor: BAYER MATTHEW F
- Applicant: SIMMONS CO
- Assignee: Simmons Co
- Current Assignee: Simmons Co
- Priority: US35638520 1920-02-05
- Main IPC: B60B33/02
- IPC: B60B33/02
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