Invention Grant
- Patent Title: Tray elevator
- Patent Title (中): 托盘电梯
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Application No.: US21877927Application Date: 1927-09-10
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Publication No.: US1796119APublication Date: 1931-03-10
- Inventor: SAMUEL OLSON
- Applicant: SAMUEL OLSON & COMPANY INC
- Assignee: Samuel Olson & Company Inc
- Current Assignee: Samuel Olson & Company Inc
- Priority: US21877927 1927-09-10
- Main IPC: B65G47/00
- IPC: B65G47/00
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