Football helmet,申请号US19390260194-传众专利搜索

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发明名称	Football helmet
摘要
申请公布号	US2194903(A)	申请公布日期	1940.03.26
申请号	US19390260194	申请日期	1939.03.06
申请人	HARVEY HOLSTEIN	发明人	HOLSTEIN HARVEY
分类号	A42B3/00	主分类号	A42B3/00
代理机构		代理人
主权项
地址

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