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公开(公告)号：US1780829A
公开(公告)日：1930-11-04
申请号：US29496828
申请日：1928-07-24
Applicant: ELITE DIAMANTWERKE AG
Inventor： ALFRED LESAGE
IPC: F02F3/00
CPC classification number: F02F3/003 , F05C2201/021 , F05C2201/0436 , F05C2201/0448
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