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发明名称
VIBRATING TRACER STYLUS
摘要
申请公布号
CA496868(A)
申请公布日期
1953.10.13
申请号
CAD496868
申请日期
申请人
A. V. ROE CANADA LIMITED
发明人
LAWRENCE E. MARCHANT
分类号
主分类号
代理机构
代理人
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