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发明名称
CYCLE BELL
摘要
申请公布号
CA448632(A)
申请公布日期
1948.05.25
申请号
CAD448632
申请日期
申请人
MARCEL BRUN
发明人
MARCEL BRUN
分类号
主分类号
代理机构
代理人
主权项
地址
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