Invention Grant
- Patent Title: Checking device
- Patent Title (中): 检查设备
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Application No.: US25172851Application Date: 1951-10-17
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Publication No.: US2811781APublication Date: 1957-11-05
- Inventor: JOHNSON OLAF A , CARLSEN LEONARD O
- Applicant: GLEASON WORKS
- Assignee: Gleason Works
- Current Assignee: Gleason Works
- Priority: US25172851 1951-10-17
- Main IPC: B23Q1/26
- IPC: B23Q1/26 ; G01B5/00
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