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发明名称
Leichtmetallkolben fuer Brennkraftmaschinen
摘要
申请公布号
DE533924(C)
申请公布日期
1931.09.23
申请号
DENDATR078647D
申请日期
申请人
GUSTAV ROEHR
发明人
分类号
F16J9/00
主分类号
F16J9/00
代理机构
代理人
主权项
地址
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