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发明名称
Moellons artificiels avec poignée de manutention, procédés et moyens d'exécution
摘要
申请公布号
FR712706(A)
申请公布日期
1931.10.09
申请号
FRD712706
申请日期
1931.03.05
申请人
发明人
DOUTAVES JOSEPH
分类号
E04B1/41
主分类号
E04B1/41
代理机构
代理人
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