Invention Grant
- Patent Title: Stair stand
- Patent Title (中): 楼梯架
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Application No.: US71460346Application Date: 1946-12-06
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Publication No.: US2479736APublication Date: 1949-08-23
- Inventor: FIEROH ROBERT W
- Applicant: FIEROH ROBERT W
- Assignee: Robert W Fieroh
- Current Assignee: Robert W Fieroh
- Priority: US71460346 1946-12-06
- Main IPC: E06C1/26
- IPC: E06C1/26
Information query
