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发明名称
Vibrator
摘要
申请公布号
US2209656(A)
申请公布日期
1940.07.30
申请号
US19370143494
申请日期
1937.05.19
申请人
WILLIAM MALL ARTHUR
发明人
MALL ARTHUR WILLIAM
分类号
E01C19/38;E04G21/06
主分类号
E01C19/38
代理机构
代理人
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地址
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