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公开(公告)号：US3455855A
公开(公告)日：1969-07-15
申请号：US3455855D
申请日：1965-10-22
Applicant: CONAP INC
Inventor： HOUGHTON RUSSELL M , MCELROY WILBUR R
CPC classification number: H05K3/285 , B41M1/12 , H05K2201/09872
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