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公开(公告)号：US3154098A
公开(公告)日：1964-10-27
申请号：US18071062
申请日：1962-03-19
Applicant: BLACK CLAWSON CO
Inventor： BLAND PERCY N
IPC: B27L1/05
CPC classification number: B27L1/05 , Y10T137/86268 , Y10T137/86501
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