Invention Grant
- Patent Title: Window-counterbalancing device
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Application No.: US72831024Application Date: 1924-07-26
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Publication No.: US1587641APublication Date: 1926-06-08
- Inventor: GOLDSMITH BERTRAM J
- Applicant: PERFECT WINDOW REGULATOR CORP
- Assignee: Perfect Window Regulator Corp
- Current Assignee: Perfect Window Regulator Corp
- Priority: US72831024 1924-07-26
- Main IPC: E05F1/16
- IPC: E05F1/16 ; E05F11/00
Information query
