Invention Grant
- Patent Title: Spiral rolling generating process for bevel gears and apparatus therefor
- Patent Title (中): 锥齿轮螺旋轧制工艺及其设备
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Application No.: US13192037Application Date: 1937-03-19
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Publication No.: US2171406APublication Date: 1939-08-29
- Inventor: HEINRICH SCHICHT
- Applicant: FIRM W FERD KLINGELNBERG SOHNE
- Assignee: Firm W Ferd Klingelnberg Sohne
- Current Assignee: Firm W Ferd Klingelnberg Sohne
- Priority: DE2171406X 1936-03-24
- Main IPC: B23F9/08
- IPC: B23F9/08
Public/Granted literature
- US20120038691A1 METHOD OF DRIVING A LIGHT SOURCE AND DISPLAY APPARATUS FOR PERFORMING THE METHOD Public/Granted day:2012-02-16
Information query
