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经营范围
发明名称
PRESSURE OPERATED ELECTRIC SWITCH
摘要
申请公布号
CA390297(A)
申请公布日期
1940.07.30
申请号
CAD390297
申请日期
申请人
AUTOMATIC TELEPHONE AND ELECTRIC COMPANY LIMITED
发明人
SIDNEY REYNELL SMITH;CLARENCE HERBERT BRIZELL
分类号
主分类号
代理机构
代理人
主权项
地址
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