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发明名称
Electric heating pad control
摘要
申请公布号
US2421953(A)
申请公布日期
1947.06.10
申请号
US19440559901
申请日期
1944.10.23
申请人
MACKENDRICK DAVID B
发明人
MACKENDRICK DAVID B.
分类号
H05B3/34
主分类号
H05B3/34
代理机构
代理人
主权项
地址
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