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经营范围
发明名称
Concrete step form
摘要
申请公布号
US2592578(A)
申请公布日期
1952.04.15
申请号
US19470744430
申请日期
1947.04.28
申请人
WALTER H. CARLSON;ORA E. CARLSON;MINNIE M. CLARK;GENEVIEVE CLARK;RICHARD L.;RUBY S. MCBRIDE FLYNN
发明人
KOGL FRANK
分类号
B28B7/22
主分类号
B28B7/22
代理机构
代理人
主权项
地址
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