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发明名称
VARIABLE-FREQUENCY GENERATOR
摘要
申请公布号
CA776835(A)
申请公布日期
1968.01.23
申请号
CAD776835
申请日期
申请人
CHARBONNAGES DE FRANCE
发明人
JEAN DE CHAUMONT
分类号
主分类号
代理机构
代理人
主权项
地址
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