Invention Grant
- Patent Title: Rotary-tray filing device
- Patent Title (中): 旋转托盘归档装置
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Application No.: US36721953Application Date: 1953-07-10
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Publication No.: US2796311APublication Date: 1957-06-18
- Inventor: NEILSEN HILDAUR L
- Applicant: ZEPHYR AMERICAN CORP
- Assignee: Zephyr American Corp
- Current Assignee: Zephyr American Corp
- Priority: US36721953 1953-07-10
- Main IPC: A47B63/06
- IPC: A47B63/06
Information query
