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发明名称
Ventilsteuerung an Dampfmaschinen.
摘要
申请公布号
CH148235(A)
申请公布日期
1931.07.15
申请号
CHD148235
申请日期
1930.02.18
申请人
CAPROTTI,ARTURO
发明人
CAPROTTI,ARTURO
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主分类号
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