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经营范围
发明名称
Expansion shield or anchor
摘要
申请公布号
US1921794(A)
申请公布日期
1933.08.08
申请号
US19310574953
申请日期
1931.11.14
申请人
J. EDWARD OGDEN COMPANY, INC.
发明人
TOMKINSON CHARLES C.
分类号
F16B13/12
主分类号
F16B13/12
代理机构
代理人
主权项
地址
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