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经营范围
发明名称
Wettertuer in elektrischen Foerderstrecken
摘要
申请公布号
DE500067(C)
申请公布日期
1930.06.16
申请号
DENDATK108221D
申请日期
申请人
JOHANNES KANDZIOROWSKI
发明人
分类号
E21F1/10
主分类号
E21F1/10
代理机构
代理人
主权项
地址
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