Invention Grant
- Patent Title: Prepayment electric meter.
- Patent Title (中): PREPAY电动机
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Application No.: US1897651401Application Date: 1897-09-13
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Publication No.: US667066APublication Date: 1901-01-29
- Inventor: COX FRANK P
- Applicant: GEN ELECTRIC
- Assignee: Gen Electric
- Current Assignee: Gen Electric
- Priority: US1897651401 1897-09-13
Information query
