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发明名称
Improvements in or relating to indicating instruments
摘要
申请公布号
GB461033(A)
申请公布日期
1937.02.09
申请号
GB19350034252
申请日期
1935.12.10
申请人
RALPH HARRISON ARCHBALD
发明人
分类号
G01D11/30;G01P1/02
主分类号
G01D11/30
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