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发明名称
Счетчик метража бумаги
摘要
申请公布号
SU56173(A1)
申请公布日期
1938.11.30
申请号
SU19380001672
申请日期
1938.05.21
申请人
BELYAKOV V.P.;RYUKHIN N.V.
发明人
BELYAKOV V.P.;RYUKHIN N.V.
分类号
D21G9/00;B65H61/00
主分类号
D21G9/00
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