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发明名称
ELECTRIC HEATING PAD
摘要
申请公布号
CA382350(A)
申请公布日期
1939.06.27
申请号
CAD382350
申请日期
申请人
SAMSON-UNITED CORPORATION
发明人
ALVIN D. KEENE
分类号
主分类号
代理机构
代理人
主权项
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