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经营范围
发明名称
Sound producing reed structure
摘要
申请公布号
US2714275(A)
申请公布日期
1955.08.02
申请号
US19520320193
申请日期
1952.11.13
申请人
GUSTAVE PROLL
发明人
PROLL GUSTAVE
分类号
A63H3/28
主分类号
A63H3/28
代理机构
代理人
主权项
地址
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