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经营范围
发明名称
Schienenherzstueck
摘要
申请公布号
DE693806(C)
申请公布日期
1940.07.19
申请号
DE193600G3078D
申请日期
1936.06.10
申请人
JEAN FRANCOIS EUGENE GRAND
发明人
分类号
E01B7/12
主分类号
E01B7/12
代理机构
代理人
主权项
地址
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