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发明名称
Improvements in and relating to headgear
摘要
申请公布号
GB383912(A)
申请公布日期
1932.11.24
申请号
GB19320017895
申请日期
1932.06.24
申请人
ALBERT EDWARD HELEY
发明人
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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