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经营范围
发明名称
Improvements in automatic variable speed gear
摘要
申请公布号
GB349046(A)
申请公布日期
1931.05.11
申请号
GB19290034830
申请日期
1929.11.14
申请人
EDUARD JANIK
发明人
分类号
F16H29/22
主分类号
F16H29/22
代理机构
代理人
主权项
地址
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