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公开(公告)号:US2549910A
公开(公告)日:1951-04-24
申请号:US7688349
申请日:1949-02-17
Applicant: LLOYD LAWSON
Inventor: HINDS LANE HOWARD
CPC classification number: B60B29/003 , B25G1/043
公开(公告)号:US2549910A
公开(公告)日:1951-04-24
申请号:US7688349
申请日:1949-02-17
Applicant: LLOYD LAWSON
Inventor: HINDS LANE HOWARD
CPC classification number: B60B29/003 , B25G1/043