Invention Grant
- Patent Title: Engraving-machine.
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Application No.: US1912726431Application Date: 1912-10-18
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Publication No.: US1069652APublication Date: 1913-08-05
- Inventor: GRAY ROSS E
- Applicant: W F ROBERTS , ALLEN C CLARK , GRAY ROSS E
- Assignee: W F Roberts,Allen C Clark,Ross E Gray
- Current Assignee: W F Roberts,Allen C Clark,Ross E Gray
- Priority: US1912726431 1912-10-18
Information query
