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发明名称
Improvements in or relating to change speed gear mechanism
摘要
申请公布号
GB514473(A)
申请公布日期
1939.11.09
申请号
GB19380007288
申请日期
1938.03.08
申请人
FREDERICK HURSH WRIGHT;EDMUND WOODWARD LEWIS
发明人
分类号
F16D21/04
主分类号
F16D21/04
代理机构
代理人
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