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公开(公告)号：US3287618A
公开(公告)日：1966-11-22
申请号：US48024065
申请日：1965-08-04
Applicant: DALTON FOUNDRIES INC
Inventor： STEPHENS THOMAS M
IPC: E05F15/00
CPC classification number: E05F15/40 , E05Y2900/106
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