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公开(公告)号：US3182808A
公开(公告)日：1965-05-11
申请号：US24608062
申请日：1962-12-20
Applicant: BENOIT ROLAND A , GINGRAS ROBERT F , DUPREY RICHARD H
Inventor： BENOIT ROLAND A , GINGRAS ROBERT F , DUPREY RICHARD H
CPC classification number: B43K31/00 , B65G15/42 , B65G2201/02
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