Invention Grant
- Patent Title: Nut-lock.
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Application No.: US1912676857Application Date: 1912-02-10
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Publication No.: US1093050APublication Date: 1914-04-14
- Inventor: HECKEL OTTO A
- Applicant: HECKEL OTTO A
- Assignee: Otto A Heckel
- Current Assignee: Otto A Heckel
- Priority: US1912676857 1912-02-10
Information query
