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发明名称
Hat
摘要
申请公布号
US2439700(A)
申请公布日期
1948.04.13
申请号
US19450622257
申请日期
1945.10.15
申请人
SIMON GERALD H
发明人
SIMON GERALD H.
分类号
A42B1/04
主分类号
A42B1/04
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