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发明名称
HEAT TREATMENT OF MICROPHONIC CARBON
摘要
申请公布号
CA512145(A)
申请公布日期
1955.04.19
申请号
CAD512145
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
MERLIN L. MARTIN
分类号
主分类号
代理机构
代理人
主权项
地址
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