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发明名称
Telltale hole opener for staybolts
摘要
申请公布号
US2275102(A)
申请公布日期
1942.03.03
申请号
US19400354052
申请日期
1940.08.24
申请人
FLANNERY BOLT COMPANY
发明人
FITZ EDWARD S.
分类号
F22B7/16
主分类号
F22B7/16
代理机构
代理人
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地址
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