Invention Grant
- Patent Title: Sash-operating mechanism
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Application No.: US40306520Application Date: 1920-08-12
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Publication No.: US1418732APublication Date: 1922-06-06
- Inventor: PETERMAN JOSEPH A
- Applicant: PETERMAN JOSEPH A
- Assignee: Joseph A Peterman
- Current Assignee: Joseph A Peterman
- Priority: US40306520 1920-08-12
- Main IPC: E05F17/00
- IPC: E05F17/00
Information query
