Invention Grant
- Patent Title: Compound unit for sound absorption
- Patent Title (中): 复合单元吸声
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Application No.: US71549634Application Date: 1934-03-14
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Publication No.: US2007130APublication Date: 1935-07-02
- Inventor: MUNROE TREADWAY B , NEUMEISTER CARL L
- Applicant: CELOTEX COMPANY
- Assignee: Celotex Company
- Current Assignee: Celotex Company
- Priority: US71549634 1934-03-14
- Main IPC: E04B1/84
- IPC: E04B1/84 ; E04B1/86
Information query
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