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经营范围
发明名称
Harmonica
摘要
申请公布号
US2252236(A)
申请公布日期
1941.08.12
申请号
US19380241499
申请日期
1938.11.21
申请人
STEELE WALTER R
发明人
STEELE WALTER R.
分类号
G10D7/12
主分类号
G10D7/12
代理机构
代理人
主权项
地址
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