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公开(公告)号：US3291313A
公开(公告)日：1966-12-13
申请号：US31467063
申请日：1963-10-08
Applicant: DAVIS WELDING & BLACKSMITH SHO
Inventor： DAVIS WENDELL W
IPC: B01D33/067 , F04D29/70
CPC classification number: F04D29/708 , B01D33/067 , B01D33/073 , B01D33/68 , B01D33/801 , B01D2201/282
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