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公开(公告)号:US2287449A
公开(公告)日:1942-06-23
申请号:US36492240
申请日:1940-11-08
Applicant: LANDIS TOOL CO
Inventor: PRICE RALPH E
IPC: B24B47/18
CPC classification number: B24B47/18
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公开(公告)号:US2192308A
公开(公告)日:1940-03-05
申请号:US11970437
申请日:1937-01-08
Applicant: LANDIS TOOL CO
Inventor: FRANK GREINER , OTT CONRAD L , PRICE RALPH E
IPC: B24B53/04
CPC classification number: B24B53/04
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公开(公告)号:US2155681A
公开(公告)日:1939-04-25
申请号:US16239137
申请日:1937-09-03
Applicant: LANDIS TOOL CO
Inventor: PRICE RALPH E
IPC: H02P3/06
CPC classification number: H02P3/06 , Y10T477/363
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公开(公告)号:US2150749A
公开(公告)日:1939-03-14
申请号:US9470436
申请日:1936-08-06
Applicant: LANDIS TOOL CO
Inventor: PRICE RALPH E , BALSIGER HAROLD E , OTT CONRAD L
IPC: B24B47/20
CPC classification number: B24B47/20 , Y10S82/90 , Y10T82/2531
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