Invention Grant
- Patent Title: Rotary finishing cutter
- Patent Title (中): 旋转精整刀
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Application No.: US29006239Application Date: 1939-08-14
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Publication No.: US2278737APublication Date: 1942-04-07
- Inventor: PRAEG WALTER S
- Applicant: NAT BROACH & MACH
- Assignee: Nat Broach & Mach
- Current Assignee: Nat Broach & Mach
- Priority: US29006239 1939-08-14
- Main IPC: B23F21/28
- IPC: B23F21/28
Information query
