Invention Grant
- Patent Title: Image superimposition apparatus
- Patent Title (中): 图像叠加装置
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Application No.: US37188153Application Date: 1953-08-03
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Publication No.: US2772600APublication Date: 1956-12-04
- Inventor: WALKER JOSEPH B
- Applicant: WALKER JOSEPH B
- Assignee: Joseph B Walker
- Current Assignee: Joseph B Walker
- Priority: US37188153 1953-08-03
- Main IPC: G03B15/12
- IPC: G03B15/12
Information query
