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发明名称
Wallboard device for wallboarding ceilings
摘要
申请公布号
US3314553(A)
申请公布日期
1967.04.18
申请号
US19650431384
申请日期
1965.02.09
申请人
VIRCKS WILLIAM A
发明人
VIRCKS WILLIAM A.
分类号
E04F21/18
主分类号
E04F21/18
代理机构
代理人
主权项
地址
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