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发明名称
Werkstuecke aus Hartgestein, insbesondere Diabas bzw. Porphyr
摘要
申请公布号
DE663493(C)
申请公布日期
1938.08.08
申请号
DE1936SC11688D
申请日期
1936.12.24
申请人
PAUL SCHAEFER
发明人
SCHAEFER PAUL
分类号
B28D1/16;C04B35/18
主分类号
B28D1/16
代理机构
代理人
主权项
地址
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