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发明名称
WATTMETER
摘要
申请公布号
CA315376(A)
申请公布日期
1931.09.22
申请号
CAD315376
申请日期
申请人
FRANK WILLIAM WOOTTON HIGHFIELD
发明人
FRANK WILLIAM WOOTTON HIGHFIELD
分类号
主分类号
代理机构
代理人
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地址
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