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发明名称
摘要
申请公布号
DE2347143(B2)
申请公布日期
1978.03.09
申请号
DE19732347143
申请日期
1973.09.19
申请人
WALKER, HELEN HAZEL, VALDOSTA, GA. (V.ST.A.)
发明人
WALKER, HELEN HAZEL, VALDOSTA, GA. (V.ST.A.)
分类号
B24B31/02;B24B31/12;B24C3/30;(IPC1-7):B24C3/30;B22D29/00
主分类号
B24B31/02
代理机构
代理人
主权项
地址
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