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经营范围
发明名称
Improved spring device
摘要
申请公布号
GB465941(A)
申请公布日期
1937.05.13
申请号
GB19350022800
申请日期
1935.08.13
申请人
GENERAL SPRING CORPORATION
发明人
分类号
F16L3/205
主分类号
F16L3/205
代理机构
代理人
主权项
地址
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