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发明名称
Process for improving the surface of form ground races
摘要
申请公布号
US2460472(A)
申请公布日期
1949.02.01
申请号
US19430506046
申请日期
1943.10.13
申请人
EX-CELL-O CORPORATION
发明人
SEYFERTH HAROLD N.
分类号
B24B19/06;F16C19/18;F16C33/60;F16C33/64
主分类号
B24B19/06
代理机构
代理人
主权项
地址
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