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发明名称
Vibrating board
摘要
申请公布号
US2674993(A)
申请公布日期
1954.04.13
申请号
US19520311875
申请日期
1952.09.27
申请人
GERALDINE HARRELL
发明人
HARRELL GERALDINE
分类号
A61H1/00;A61H23/02
主分类号
A61H1/00
代理机构
代理人
主权项
地址
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