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发明名称
Joint cover
摘要
申请公布号
US1988029(A)
申请公布日期
1935.01.15
申请号
US19330688995
申请日期
1933.09.11
申请人
MORTON WOLFE GEORGE
发明人
WOLFE GEORGE MORTON
分类号
E04B1/68
主分类号
E04B1/68
代理机构
代理人
主权项
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