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公开(公告)号：US3434304A
公开(公告)日：1969-03-25
申请号：US3434304D
申请日：1967-09-27
Applicant: REGINA CORP THE
Inventor： MEYERHOEFER CARL E
CPC classification number: F16J15/3228 , A47L11/40 , Y10S277/919 , Y10S464/90
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