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发明名称
Improvement in change speed mechanism
摘要
申请公布号
GB470176(A)
申请公布日期
1937.08.11
申请号
GB19350029326
申请日期
1936.10.26
申请人
CHARLES HUMPHREY HUMPHREYS
发明人
分类号
F16H61/02
主分类号
F16H61/02
代理机构
代理人
主权项
地址
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