Invention Grant
- Patent Title: Air-valve for radiators.
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Application No.: US1907369114Application Date: 1907-04-19
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Publication No.: US888914APublication Date: 1908-05-26
- Inventor: LEUTHESSER FRED W
- Applicant: LEUTHESSER FRED W
- Assignee: Fred W Leuthesser
- Current Assignee: Fred W Leuthesser
- Priority: US1907369114 1907-04-19
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