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发明名称
METHOD AND MACHINE FOR HEAT TREATING METAL BALLS
摘要
申请公布号
US3618922(A)
申请公布日期
1971.11.09
申请号
USD3618922
申请日期
1969.12.08
申请人
HOLCROFT & CO.
发明人
ROLAND C. CRANS
分类号
C21D9/36;(IPC1-7):C21D1/62
主分类号
C21D9/36
代理机构
代理人
主权项
地址
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