Invention Grant
- Patent Title: Engraving-machine.
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Application No.: US1904222188Application Date: 1904-08-25
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Publication No.: US818138APublication Date: 1906-04-17
- Inventor: AVRIL PAUL VICTOR
- Applicant: AVRIL PAUL VICTOR
- Assignee: Paul Victor Avril
- Current Assignee: Paul Victor Avril
- Priority: US1904222188 1904-08-25
Information query
