Invention Grant
- Patent Title: Vapor couple.
- Patent Title (中): 蒸气杯
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Application No.: US1914859104Application Date: 1914-08-28
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Publication No.: US1293527APublication Date: 1919-02-04
- Inventor: OVINGTON EDWARD J
- Applicant: OVINGTON EDWARD J
- Assignee: Edward J Ovington
- Current Assignee: Edward J Ovington
- Priority: US1914859104 1914-08-28
Information query
