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公开(公告)号:US3111217A
公开(公告)日:1963-11-19
申请号:US22933662
申请日:1962-10-09
Applicant: SCREW CONVEYOR CORP
Inventor: ASHER MAX W
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公开(公告)号:US3140775A
公开(公告)日:1964-07-14
申请号:US22935662
申请日:1962-10-09
Applicant: SCREW CONVEYOR CORP
Inventor: ASHER MAX W
IPC: B65G19/22
CPC classification number: B65G19/22
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