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公开(公告)号:US3060665A
公开(公告)日:1962-10-30
申请号:US1633560
申请日:1960-03-21
Applicant: SCREW CONVEYOR CORP
Inventor: ESCHER EDWARD P
IPC: A01D61/00
CPC classification number: A01D61/008
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公开(公告)号:US2545140A
公开(公告)日:1951-03-13
申请号:US77719247
申请日:1947-10-01
Applicant: SCREW CONVEYOR CORP
Inventor: ESCHER EDWARD P
IPC: B65G33/36
CPC classification number: B65G33/36
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公开(公告)号:US2364353A
公开(公告)日:1944-12-05
申请号:US47702643
申请日:1943-02-25
Applicant: SCREW CONVEYOR CORP
Inventor: ESCHER EDWARD P
IPC: B65G33/00
CPC classification number: B65G33/00 , B65G2812/0561
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公开(公告)号:US2459770A
公开(公告)日:1949-01-18
申请号:US61476145
申请日:1945-09-06
Applicant: SCREW CONVEYOR CORP
Inventor: ESCHER EDWARD P
IPC: B65G33/00
CPC classification number: B65G33/00 , B65G2812/055 , Y10T292/20 , Y10T292/228
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