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发明名称
Ramming machine for forming pipe molds
摘要
申请公布号
US1799076(A)
申请公布日期
1931.03.31
申请号
US19280314450
申请日期
1928.10.23
申请人
ROBERT ARDELT
发明人
ARDELT ROBERT
分类号
B22C13/10
主分类号
B22C13/10
代理机构
代理人
主权项
地址
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