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经营范围
发明名称
Embouchure arch
摘要
申请公布号
US2637239(A)
申请公布日期
1953.05.05
申请号
US19490082207
申请日期
1949.03.18
申请人
ZIEGNER SWANSON
发明人
SWANSON ZIEGNER
分类号
G10D9/02
主分类号
G10D9/02
代理机构
代理人
主权项
地址
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