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发明名称
OPERATIONAL DEVICE FOR DEPICTING SPIRAL CURVE
摘要
申请公布号
JPS5217350(A)
申请公布日期
1977.02.09
申请号
JP19750093722
申请日期
1975.07.31
申请人
SOUKI KOUGIYOU KK
发明人
YAMADA TSUTOMU
分类号
B23K9/127;B23K7/00;B23K7/06;B23K9/04;B23K37/00
主分类号
B23K9/127
代理机构
代理人
主权项
地址
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