Invention Grant
- Patent Title: Diaphragm-hood.
- Patent Title (中): 透明膜
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Application No.: US1912692445Application Date: 1912-04-22
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Publication No.: US1063607APublication Date: 1913-06-03
- Inventor: SCHROYER HARRY A
- Applicant: ACME SUPPLY COMPANY
- Assignee: Acme Supply Company
- Current Assignee: Acme Supply Company
- Priority: US1912692445 1912-04-22
Information query
