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发明名称
Эллипсограф
摘要
申请公布号
SU84322(A1)
申请公布日期
1949.11.30
申请号
SU19490400287
申请日期
1949.07.07
申请人
MYAKINNIKOV N.A.
发明人
MYAKINNIKOV N.A.
分类号
B43L11/04
主分类号
B43L11/04
代理机构
代理人
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