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经营范围
发明名称
BLACK BOARD
摘要
申请公布号
SU1484763(A1)
申请公布日期
1989.06.07
申请号
SU19874319512
申请日期
1987.10.21
申请人
BOZHOK ADIK M,SU;PONEDILOK VLADIMIR F,SU;KLEVTSOV NIKOLAJ N,SU;BOZHOK ANNA D,SU
发明人
BOZHOK ADIK M,SU;PONEDILOK VLADIMIR F,SU;KLEVTSOV NIKOLAJ N,SU;BOZHOK ANNA D,SU
分类号
B43L1/04
主分类号
B43L1/04
代理机构
代理人
主权项
地址
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