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经营范围
发明名称
Improvements in chain shifting devices for cycles
摘要
申请公布号
GB407505(A)
申请公布日期
1934.03.22
申请号
GB19330001999
申请日期
1933.01.21
申请人
LOUIS CAMILLIS
发明人
分类号
B62M9/124
主分类号
B62M9/124
代理机构
代理人
主权项
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