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经营范围
发明名称
Improvements in or relating to spring balances
摘要
申请公布号
GB725102(A)
申请公布日期
1955.03.02
申请号
GB19530023337
申请日期
1953.08.24
申请人
HERBERT RUFF
发明人
分类号
G01G19/46
主分类号
G01G19/46
代理机构
代理人
主权项
地址
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