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公开(公告)号：US2956314A
公开(公告)日：1960-10-18
申请号：US79074059
申请日：1959-02-02
Applicant: ROWE MFG COMPANY
Inventor： ROWE DALE H , JACKWIG ROY R
CPC classification number: E06B3/68 , E06B3/9649
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