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发明名称
Road making apparatus
摘要
申请公布号
US2086395(A)
申请公布日期
1937.07.06
申请号
US19330668340
申请日期
1933.04.28
申请人
W. A. RIDDELL CORPORATION
发明人
SPENCER RALPH S.
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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