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公开(公告)号：US2584202A
公开(公告)日：1952-02-05
申请号：US14767950
申请日：1950-03-04
Applicant: HARP SR LLOYD C
Inventor： HARP SR LLOYD C
IPC: A01J11/04
CPC classification number: B01F11/0085 , A01J11/04 , B01F11/0091
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