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公开(公告)号：US3162891A
公开(公告)日：1964-12-29
申请号：US19545262
申请日：1962-05-17
Applicant: LEONARD OBOLER
Inventor： PEPPER CARL P
CPC classification number: E05D11/1064 , E05F1/1253 , E05Y2201/686 , E05Y2900/20 , Y10T16/53832 , Y10T16/53836
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