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经营范围
发明名称
Concrete placement apparatus
摘要
申请公布号
US2485208(A)
申请公布日期
1949.10.18
申请号
US19470786531
申请日期
1947.11.17
申请人
CHAIN BELT COMPANY
发明人
LONGENECKER CHARLES I.
分类号
F04B1/02;F04B15/02;F04B53/10;F04B53/16
主分类号
F04B1/02
代理机构
代理人
主权项
地址
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