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公开(公告)号：US3539674A
公开(公告)日：1970-11-10
申请号：US3539674D
申请日：1968-07-22
Applicant: DAVOL INC
Inventor： DERENIUK PAUL , BLECHARCZYK WALTER J
CPC classification number: A61M25/1036 , A61M25/1029 , A61M25/1034 , B29C41/14 , B29L2031/7542
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