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发明名称
Improvements in indicating instruments
摘要
申请公布号
GB814187(A)
申请公布日期
1959.06.03
申请号
GB19560018806
申请日期
1956.06.18
申请人
S. SMITH & SONS (ENGLAND) LIMITED
发明人
ELLIS JOHN WYNDHAM
分类号
G04B39/00
主分类号
G04B39/00
代理机构
代理人
主权项
地址
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