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发明名称
Improvements in or relating to protective headgear
摘要
申请公布号
GB953117(A)
申请公布日期
1964.03.25
申请号
GB19620007018
申请日期
1962.02.22
申请人
D. LEWIS LIMITED
发明人
KEATING WILFRID
分类号
A42B3/22
主分类号
A42B3/22
代理机构
代理人
主权项
地址
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