Invention Grant
- Patent Title: Gravity-hinge.
- Patent Title (中): GRAVITY-HINGE。
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Application No.: US1908449454Application Date: 1908-08-20
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Publication No.: US903704APublication Date: 1908-11-10
- Inventor: GLOEKLER JOHN EDWARD
- Applicant: GLOEKLER JOHN EDWARD
- Assignee: John Edward Gloekler
- Current Assignee: John Edward Gloekler
- Priority: US1908449454 1908-08-20
Information query
