Invention Grant
- Patent Title: Bellows-actuating mechanism for musical instruments.
- Patent Title (中): 用于音乐仪器的BELLOWS-ACTUATING机制。
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Application No.: US1912711422Application Date: 1912-07-25
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Publication No.: US1083136APublication Date: 1913-12-30
- Inventor: RAWLS JAMES POLK
- Applicant: RAWLS JAMES POLK
- Assignee: James Polk Rawls
- Current Assignee: James Polk Rawls
- Priority: US1912711422 1912-07-25
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