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经营范围
发明名称
Concrete plane
摘要
申请公布号
US3156231(A)
申请公布日期
1964.11.10
申请号
US19620171435
申请日期
1962.02.06
申请人
EQUIPMENT DEVELOPMENT CO., INC.
发明人
JR. EDWARD M. HARDING,
分类号
B28D1/18;E01C23/088
主分类号
B28D1/18
代理机构
代理人
主权项
地址
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