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发明名称
DUAL WHEEL SPACER
摘要
申请公布号
US3623772(A)
申请公布日期
1971.11.30
申请号
USD3623772
申请日期
1970.01.21
申请人
DAYTON STEEL FOUNDRY CO.:THE
发明人
WILLIAM D. WALTHER
分类号
B60B11/06;(IPC1-7):B60B11/06
主分类号
B60B11/06
代理机构
代理人
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地址
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