Invention Grant
- Patent Title: Lock.
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Application No.: US1907394267Application Date: 1907-09-24
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Publication No.: US920091APublication Date: 1909-04-27
- Inventor: SIMPSON HENRY W
- Applicant: MARCUS E CALKINS
- Assignee: Marcus E Calkins
- Current Assignee: Marcus E Calkins
- Priority: US1907394267 1907-09-24
Information query
