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发明名称
Hat
摘要
申请公布号
US1784470(A)
申请公布日期
1930.12.09
申请号
US19300470848
申请日期
1930.07.26
申请人
CARL STEINBERG
发明人
STEINBERG CARL
分类号
A42B1/02;A42B1/14
主分类号
A42B1/02
代理机构
代理人
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