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公开(公告)号：US2132138A
公开(公告)日：1938-10-04
申请号：US219835
申请日：1935-01-17
Applicant: IRONSIDES COMPANY
Inventor： WILLIAMS ROBERT C , BONE HUGH M
IPC: B01F17/00
CPC classification number: B01F17/0021
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公开(公告)号：US2139343A
公开(公告)日：1938-12-06
申请号：US9483136
申请日：1936-08-07
Applicant: IRONSIDES COMPANY
Inventor： WILLIAMS ROBERT C , BONE HUGH M
IPC: D06M13/188 , D06M15/17
CPC classification number: D06M13/188 , D06M15/17
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