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发明名称
Improvements in and relating to variable speed gearing
摘要
申请公布号
GB428302(A)
申请公布日期
1935.05.10
申请号
GB19330033000
申请日期
1933.11.25
申请人
HANS HEYDEN
发明人
分类号
F16H33/12
主分类号
F16H33/12
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代理人
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