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发明名称
Locking type caster
摘要
申请公布号
US2512941(A)
申请公布日期
1950.06.27
申请号
US19480017687
申请日期
1948.03.29
申请人
JOHNSON WALLACE J S
发明人
JOHNSON WALLACE J. S.
分类号
B60B33/02
主分类号
B60B33/02
代理机构
代理人
主权项
地址
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