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发明名称
Electrovacuum vibrator
摘要
申请公布号
US2314590(A)
申请公布日期
1943.03.23
申请号
US19400354196
申请日期
1940.08.26
申请人
JOHN D. GREY
发明人
MCCARTY MADISON P.
分类号
A61H9/00;A61H23/02;A61M1/08
主分类号
A61H9/00
代理机构
代理人
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地址
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