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发明名称
Apparatus for making wing-nuts
摘要
申请公布号
US2068076(A)
申请公布日期
1937.01.19
申请号
US19320628569
申请日期
1932.08.12
申请人
HEYMAN ROSENBERG
发明人
ROSENBERG HEYMAN
分类号
B21K1/70
主分类号
B21K1/70
代理机构
代理人
主权项
地址
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