Invention Grant
- Patent Title: Door-hanger.
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Application No.: US1908411843Application Date: 1908-01-20
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Publication No.: US895156APublication Date: 1908-08-04
- Inventor: BURKHOLDER JOHN H
- Applicant: J E PORTER COMPANY
- Assignee: J E Porter Company
- Current Assignee: J E Porter Company
- Priority: US1908411843 1908-01-20
Information query
