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发明名称
ELECTRICAL HEATING ELEMENT
摘要
申请公布号
CA316692(A)
申请公布日期
1931.11.03
申请号
CAD316692
申请日期
申请人
GEO. BRAY AND COMPANY LIMITED
发明人
GEORGE BRAY
分类号
主分类号
代理机构
代理人
主权项
地址
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