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发明名称
Follow-up type servomotor
摘要
申请公布号
US2449400(A)
申请公布日期
1948.09.14
申请号
US19420461209
申请日期
1942.10.07
申请人
THE HYDRAULIC DEVELOPMENT CORP., INC.
发明人
LINDSEY ROBERT J.
分类号
F15B9/10
主分类号
F15B9/10
代理机构
代理人
主权项
地址
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