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发明名称
Adjustable cap
摘要
申请公布号
US1997678(A)
申请公布日期
1935.04.16
申请号
US19340725489
申请日期
1934.05.14
申请人
CREMEN FRANK H
发明人
CREMEN FRANK H.
分类号
A42B1/22
主分类号
A42B1/22
代理机构
代理人
主权项
地址
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