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经营范围
发明名称
Improvements in variable speed transmission
摘要
申请公布号
GB407939(A)
申请公布日期
1934.03.26
申请号
GB19320026557
申请日期
1932.09.24
申请人
NORMAN LESLIE SMITH
发明人
分类号
F16H3/72
主分类号
F16H3/72
代理机构
代理人
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