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发明名称
Procédé de fabrication de mortiers et de bétons légers.
摘要
申请公布号
CH159028(A)
申请公布日期
1932.12.15
申请号
CHD159028
申请日期
1930.03.03
申请人
MARECHAL,FRANCOIS ERNEST
发明人
ERNEST MARECHAL,FRANCOIS
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