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经营范围
发明名称
DOPPELT GEDECKTES ENERGIEDACH.
摘要
申请公布号
CH659281(A5)
申请公布日期
1987.01.15
申请号
CH19830000601
申请日期
1983.02.03
申请人
MANFRED HELFRECHT
发明人
HELFRECHT, MANFRED
分类号
E04B7/22;E04D12/00;E04D13/18;F24J2/04;(IPC1-7):E04D13/18
主分类号
E04B7/22
代理机构
代理人
主权项
地址
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