Invention Grant
- Patent Title: Prepayment-meter.
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Application No.: US1897644553Application Date: 1897-07-14
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Publication No.: US867481APublication Date: 1907-10-01
- Inventor: COX FRANK P
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US1897644553 1897-07-14
Information query
