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发明名称
Магазин для графита к приборам для введения в паровой котел коллоидального графита
摘要
申请公布号
SU21153(A1)
申请公布日期
1931.07.31
申请号
SU19300072566
申请日期
1930.06.29
申请人
RYZHKOV V.V.
发明人
RYZHKOV V.V.
分类号
B01J4/02
主分类号
B01J4/02
代理机构
代理人
主权项
地址
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