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发明名称
Spinning bowl
摘要
申请公布号
US2199309(A)
申请公布日期
1940.04.30
申请号
US19390269045
申请日期
1939.04.20
申请人
FREUDENBERG HERMAN O
发明人
FREUDENBERG HERMAN O.
分类号
C03B37/05
主分类号
C03B37/05
代理机构
代理人
主权项
地址
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