Invention Grant
- Patent Title: Mining-machine.
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Application No.: US1901043319Application Date: 1901-01-15
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Publication No.: US878976APublication Date: 1908-02-11
- Inventor: MERRILL EDWIN R
- Applicant: JOSEPH A JEFFREY
- Assignee: Joseph A Jeffrey
- Current Assignee: Joseph A Jeffrey
- Priority: US1901043319 1901-01-15
Information query
