Invention Grant
- Patent Title: Valve.
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Application No.: US1904209711Application Date: 1904-05-25
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Publication No.: US814402APublication Date: 1906-03-06
- Inventor: SIMPSON CHARLES E
- Applicant: SIMPSON CHARLES E
- Assignee: Charles E Simpson
- Current Assignee: Charles E Simpson
- Priority: US1904209711 1904-05-25
Information query
