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公开(公告)号：US1583473A
公开(公告)日：1926-05-04
申请号：US63539023
申请日：1923-04-28
Applicant: CENTRAL SCIENTIFIC CO
Inventor： KLOPSTEG PAUL E , MANN LESTER B
IPC: F04F9/00
CPC classification number: F04F9/00
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