Invention Grant
- Patent Title: Window operator and lock
- Patent Title (中): 窗口操作员和锁
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Application No.: US20418338Application Date: 1938-04-25
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Publication No.: US2208889APublication Date: 1940-07-23
- Inventor: BLISS ROBERT H
- Applicant: BLISS ROBERT H
- Assignee: Robert H Bliss
- Current Assignee: Robert H Bliss
- Priority: US20418338 1938-04-25
- Main IPC: E05F11/00
- IPC: E05F11/00 ; E05F11/12
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