Invention Grant
- Patent Title: Opener for sliding doors
- Patent Title (中): 开门器用于推拉门
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Application No.: US39187541Application Date: 1941-05-05
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Publication No.: US2334981APublication Date: 1943-11-23
- Inventor: ACKLEY PERCY A
- Applicant: ACKLEY PERCY A
- Assignee: Percy A Ackley
- Current Assignee: Percy A Ackley
- Priority: US39187541 1941-05-05
- Main IPC: E05F15/14
- IPC: E05F15/14
Information query
