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发明名称
Improvements relating to the electric welding of metal window frames
摘要
申请公布号
GB363486(A)
申请公布日期
1931.12.24
申请号
GB19300035699
申请日期
1930.11.27
申请人
HENRY HOPE & SONS LIMITED;GRAHAM WILFRED SAINSBURY
发明人
分类号
B23K33/00
主分类号
B23K33/00
代理机构
代理人
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