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经营范围
发明名称
Chemical heating pad and method of manufacture thereof
摘要
申请公布号
GB536038(A)
申请公布日期
1941.04.30
申请号
GB19390032258
申请日期
1939.12.14
申请人
UNITED STATES APPLIANCE CORPORATION
发明人
分类号
A61F7/02;F24J1/00
主分类号
A61F7/02
代理机构
代理人
主权项
地址
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