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发明名称
Chain locking device
摘要
申请公布号
US1896592(A)
申请公布日期
1933.02.07
申请号
US19320584839
申请日期
1932.01.05
申请人
JOHN POTTER
发明人
POTTER JOHN
分类号
B60C27/08
主分类号
B60C27/08
代理机构
代理人
主权项
地址
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