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发明名称
Concrete delivery
摘要
申请公布号
US1894129(A)
申请公布日期
1933.01.10
申请号
US19280277406
申请日期
1928.05.14
申请人
SHAW HARRY J
发明人
SHAW HARRY J.
分类号
B28C5/42
主分类号
B28C5/42
代理机构
代理人
主权项
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