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发明名称
Fremgangsmaade til Fremstilling af Cement, Cementmørtel og Beton.
摘要
申请公布号
DK47994(C)
申请公布日期
1933.11.06
申请号
DKD47994
申请日期
1932.10.31
申请人
DR. HANS OPALSKY
发明人
DR. HANS OPALSKY
分类号
主分类号
代理机构
代理人
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地址
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