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发明名称
Change-speed gearing for chaindriven vehicles
摘要
申请公布号
US2117116(A)
申请公布日期
1938.05.10
申请号
US19360085992
申请日期
1936.06.18
申请人
TRI-VELOX GEARS LIMITED
发明人
PAGE VALENTINE
分类号
B62M9/14
主分类号
B62M9/14
代理机构
代理人
主权项
地址
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