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1.发明授权
公开(公告)号：US3121187A
公开(公告)日：1964-02-11
申请号：US4928860
申请日：1960-08-12
Applicant: SPECIALTIES DEV CORP
Inventor： HARTSOCK WALTER F , SALVATORE IANNUZZI , ARDUINO RIULI
CPC classification number: A62C99/0027 , H05F3/00
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