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公开(公告)号:US3521074A
公开(公告)日:1970-07-21
申请号:US3521074D
申请日:1968-04-19
Applicant: MANDREL INDUSTRIES
Inventor: FROBESE CHARLES W
IPC: G01N21/89
CPC classification number: G01N21/8901
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公开(公告)号:US3380586A
公开(公告)日:1968-04-30
申请号:US49651765
申请日:1965-10-15
Applicant: MANDREL INDUSTRIES
Inventor: FROBESE CHARLES W , WAMBECK STANLEY H VAN
CPC classification number: B07C5/361 , B07C5/365 , B65G47/503
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