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公开(公告)号：US3049304A
公开(公告)日：1962-08-14
申请号：US2988160
申请日：1960-05-18
Applicant: SEARS VERNON R
Inventor： SEARS VERNON R
CPC classification number: B05B7/30 , A01G25/145 , A47L1/08 , B05B7/0408
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