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发明名称
Detachable counterbalance
摘要
申请公布号
US2123587(A)
申请公布日期
1938.07.12
申请号
US19350048486
申请日期
1935.11.06
申请人
UNITED IRON WORKS COMPANY;J. A. WERME
发明人
HOLZER HIRAM A.
分类号
F04B47/14
主分类号
F04B47/14
代理机构
代理人
主权项
地址
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