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公开(公告)号：US1668989A
公开(公告)日：1928-05-08
申请号：US11079026
申请日：1926-05-21
Applicant: ROBBINS AND MYERS COMPANY
Inventor： STUART HARVE R
IPC: F04D25/10
CPC classification number: F04D25/105 , Y10T74/18416
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公开(公告)号：US1511538A
公开(公告)日：1924-10-14
申请号：US52679222
申请日：1922-01-03
Applicant: ROBBINS AND MYERS COMPANY
Inventor： STUART HARVE R
IPC: H02K7/12
CPC classification number: H02K7/125
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