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发明名称
Perfectionnements aux briques
摘要
申请公布号
FR935477(A)
申请公布日期
1948.06.18
申请号
FRD935477
申请日期
1946.10.30
申请人
发明人
CHAPMAN BERTRAM JOHN
分类号
E04B2/02;E04B2/16;E04B2/20;H01J5/28
主分类号
E04B2/02
代理机构
代理人
主权项
地址
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