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经营范围
发明名称
Concrete pipe making and laying machine
摘要
申请公布号
US2878544(A)
申请公布日期
1959.03.24
申请号
US19530345580
申请日期
1953.03.30
申请人
DILDAY SIDNEY A
发明人
DILDAY SIDNEY A.
分类号
B28B21/06;B28B21/66;F16L1/06
主分类号
B28B21/06
代理机构
代理人
主权项
地址
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