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发明名称
Hat
摘要
申请公布号
US2295826(A)
申请公布日期
1942.09.15
申请号
US19400366103
申请日期
1940.11.18
申请人
ADOLF BRAV
发明人
BRAV ADOLF
分类号
A42B1/18
主分类号
A42B1/18
代理机构
代理人
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地址
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