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发明名称
RULER FOR QUADRATIC CURVE AS PARABOLIC, HYPERBOLIC, ELLIPTIC CURVES
摘要
申请公布号
JPH0274397(A)
申请公布日期
1990.03.14
申请号
JP19880227251
申请日期
1988.09.10
申请人
OGATA SHOZO
发明人
OGATA SHOZO
分类号
B43L11/00;B43L11/04
主分类号
B43L11/00
代理机构
代理人
主权项
地址
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