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发明名称
Briques de construction perfectionnées
摘要
申请公布号
FR722969(A)
申请公布日期
1932.03.31
申请号
FRD722969
申请日期
1931.09.17
申请人
发明人
WALKER WALLACE FRED
分类号
E04B2/02;E04B2/42
主分类号
E04B2/02
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代理人
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