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发明名称
Règle à calculs pour le béton armé
摘要
申请公布号
FR1010250(A)
申请公布日期
1952.06.09
申请号
FRD1010250
申请日期
1950.02.01
申请人
发明人
OUVIER LOUIS-ELIE
分类号
G06G1/12
主分类号
G06G1/12
代理机构
代理人
主权项
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