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经营范围
发明名称
SPIRAL PIPE CONSTRUCTION
摘要
申请公布号
CA856575(A)
申请公布日期
1970.11.24
申请号
CAD856575
申请日期
1968.09.02
申请人
TPL INDUSTRIES LTD.
发明人
ARCHIBALD L. PATERSON
分类号
B21C37/12;B21H7/00;F16L9/06
主分类号
B21C37/12
代理机构
代理人
主权项
地址
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