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经营范围
发明名称
MULTIPLE WALLED CHIMNEY
摘要
申请公布号
EP0399038(A4)
申请公布日期
1991.05.08
申请号
EP19900901295
申请日期
1989.11.29
申请人
AMERICAN METAL PRODUCTS COMPANY
发明人
ANNESTEDT, JAMES, W., SR.
分类号
F23J13/04;E04F17/02;F16L59/21;(IPC1-7):F16L39/00
主分类号
F23J13/04
代理机构
代理人
主权项
地址
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