Invention Grant
- Patent Title: Apparatus for treating surfaces
- Patent Title (中): 用于处理表面的设备
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Application No.: US46244342Application Date: 1942-10-15
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Publication No.: US2433922APublication Date: 1948-01-06
- Inventor: HAROLD OSTERBERG
- Applicant: AMERICAN OPTICAL CORP
- Assignee: American Optical Corp
- Current Assignee: American Optical Corp
- Priority: US46244342 1942-10-15
- Main IPC: C23C14/56
- IPC: C23C14/56
Information query
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