Invention Grant
- Patent Title: Machine for making screws
- Patent Title (中): 制造螺丝机
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Application No.: US31896163Application Date: 1963-10-25
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Publication No.: US3203315APublication Date: 1965-08-31
- Inventor: PFEIFFER FRED B
- Applicant: PFEIFFER FRED B
- Assignee: Fred B Pfeiffer
- Current Assignee: Fred B Pfeiffer
- Priority: US31896163 1963-10-25
- Main IPC: B23C3/32
- IPC: B23C3/32 ; B23G1/32 ; B23G7/00
Information query
