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发明名称
ATTACHMENTS FOR METHEMATICAL MACHINES
摘要
申请公布号
ZA6908051(B)
申请公布日期
1971.05.27
申请号
ZA19690008051
申请日期
1969.11.18
申请人
SHELDON H;NUTTALL R
发明人
NUTTALL R
分类号
B41F
主分类号
B41F
代理机构
代理人
主权项
地址
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