Invention Grant
- Patent Title: Demand apparatus.
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Application No.: US1914854967Application Date: 1914-08-04
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Publication No.: US1138787APublication Date: 1915-05-11
- Inventor: PORTER WILLARD E
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US1914854967 1914-08-04
Information query
