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发明名称
Tire groover
摘要
申请公布号
US2214885(A)
申请公布日期
1940.09.17
申请号
US19390270559
申请日期
1939.04.28
申请人
MATCHETT OTIS L
发明人
MATCHETT OTIS L.
分类号
B29D30/68
主分类号
B29D30/68
代理机构
代理人
主权项
地址
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