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发明名称
NULL-BALANCE BRIDGE SYSTEM
摘要
申请公布号
CA629993(A)
申请公布日期
1961.10.31
申请号
CAD629993
申请日期
申请人
ROBERTSHAW-FULTON CONTROLS COMPANY
发明人
FREDERICK L. MALTBY;JOSEPH W. PHILIPPI;EDWARD COZZETTE
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主分类号
代理机构
代理人
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