Invention Grant
- Patent Title: Door-hanger.
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Application No.: US1905288308Application Date: 1905-11-20
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Publication No.: US833438APublication Date: 1906-10-16
- Inventor: BURKHOLDER JOHN H
- Applicant: WILLIAM V B TOPPING
- Assignee: William V B Topping
- Current Assignee: William V B Topping
- Priority: US1905288308 1905-11-20
Information query
