Invention Grant
- Patent Title: Warning signal
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Application No.: US39830529Application Date: 1929-10-09
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Publication No.: US1828892APublication Date: 1931-10-27
- Inventor: FELTON WILLIAM T
- Applicant: FELTON WILLIAM T
- Assignee: William T Felton
- Current Assignee: William T Felton
- Priority: US39830529 1929-10-09
- Main IPC: E01F9/011
- IPC: E01F9/011 ; E01F9/017
Information query
