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经营范围
发明名称
Improved building unit for acoustic constructional purposes
摘要
申请公布号
GB599579(A)
申请公布日期
1948.03.16
申请号
GB19450024191
申请日期
1945.09.19
申请人
DOUGLAS JACK WAYTH CULLUM
发明人
分类号
E04B9/00
主分类号
E04B9/00
代理机构
代理人
主权项
地址
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