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经营范围
发明名称
Production of porous building materials
摘要
申请公布号
US2004545(A)
申请公布日期
1935.06.11
申请号
US19330666820
申请日期
1933.04.19
申请人
I. G. FARBENINDUSTRIE AKTIENGESELLSCHAFT
发明人
WOLF HANS;LEUCHS HERMANN;SAENGER HANS
分类号
C04B28/26
主分类号
C04B28/26
代理机构
代理人
主权项
地址
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