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经营范围
发明名称
Self adjusting stylus
摘要
申请公布号
US2850350(A)
申请公布日期
1958.09.02
申请号
US19530395932
申请日期
1953.12.03
申请人
THE WESTERN UNION TELEGRAPH COMPANY
发明人
WISE RALEIGH J.;ZABRISKIE DOUGLAS M.
分类号
H04N1/032
主分类号
H04N1/032
代理机构
代理人
主权项
地址
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