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发明名称
PRODUCTION OF PISTON RING OF SINTERED METAL
摘要
申请公布号
JPS56116802(A)
申请公布日期
1981.09.12
申请号
JP19800019751
申请日期
1980.02.21
申请人
RIKEN KK
发明人
MIYANO MASAHARU;MOTOI CHIYOJI
分类号
B22F3/24;B22F5/02;F16J1/00;F16J9/26
主分类号
B22F3/24
代理机构
代理人
主权项
地址
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