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经营范围
发明名称
Improvements in and connected with variable speed gears
摘要
申请公布号
GB426813(A)
申请公布日期
1935.04.10
申请号
GB19330029919
申请日期
1934.06.22
申请人
HORATIO THOMAS;DAVID GREVILLE WILLIAMS
发明人
分类号
F16D31/04
主分类号
F16D31/04
代理机构
代理人
主权项
地址
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