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发明名称
Dashpot
摘要
申请公布号
US1810233(A)
申请公布日期
1931.06.16
申请号
US19280282587
申请日期
1928.06.04
申请人
WALDEN LERNA D
发明人
WALDEN LERNA D.
分类号
G01G23/08
主分类号
G01G23/08
代理机构
代理人
主权项
地址
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