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发明名称
Road semi-surfacing implement
摘要
申请公布号
US2093766(A)
申请公布日期
1937.09.21
申请号
US19350033219
申请日期
1935.07.26
申请人
UNITED PATENTS INC.
发明人
RICH OLIVER A.
分类号
E02F3/76
主分类号
E02F3/76
代理机构
代理人
主权项
地址
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