Invention Grant
- Patent Title: Process of making negatives in metal of solid objects or surfaces
- Patent Title (中): 在固体物体或表面的金属中制造负片的过程
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Application No.: US38181841Application Date: 1941-03-05
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Publication No.: US2293062APublication Date: 1942-08-18
- Inventor: INGHAM HERBERT S
- Applicant: METALLIZING ENGINEERING COMPAN
- Assignee: Metallizing Engineering Compan
- Current Assignee: Metallizing Engineering Compan
- Priority: US38181841 1941-03-05
- Main IPC: C23C4/18
- IPC: C23C4/18
Information query
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