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发明名称
Improvements in buttons
摘要
申请公布号
GB537766(A)
申请公布日期
1941.07.04
申请号
GB19400007736
申请日期
1940.04.30
申请人
W. T. HENLEY'S TELEGRAPH WORKS COMPANY LIMITED;ERNEST MOOR
发明人
分类号
A44B1/24
主分类号
A44B1/24
代理机构
代理人
主权项
地址
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