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1.发明授权
公开(公告)号：US3319187A
公开(公告)日：1967-05-09
申请号：US54769366
申请日：1966-04-06
Applicant: SIMMONDS PRECISION PRODUCTS
Inventor： CRANDALL MILTON A
CPC classification number: H03B5/1847 , H03B2201/0258
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公开(公告)号：US3262072A
公开(公告)日：1966-07-19
申请号：US38338864
申请日：1964-07-17
Applicant: SIMMONDS PRECISION PRODUCTS
Inventor： CRANDALL MILTON A
CPC classification number: H03B5/1231 , H03B5/1203 , H03B5/1243 , H03B2200/004 , H03B2201/0208
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