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发明名称
Fremgangsmaade til Forøgelse af Styrken af Beton og ved Fremgangsmaaden anvendeligt Dække.
摘要
申请公布号
DK55701(C)
申请公布日期
1939.01.16
申请号
DKD55701
申请日期
1936.10.03
申请人
KARL PAULI BILLNER
发明人
KARL PAULI BILLNER
分类号
主分类号
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代理人
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