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发明名称
PISTON RING FOR PULVERULENT FUEL ENGINES
摘要
申请公布号
CA317789(A)
申请公布日期
1931.12.08
申请号
CAD317789
申请日期
申请人
RUDOLF PAWLIKOWSKI
发明人
RUDOLF PAWLIKOWSKI
分类号
主分类号
代理机构
代理人
主权项
地址
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