Improvements in or relating to travelling ladders for use in telephone exchanges and the like,申请号GB19300020095-传众专利搜索

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发明名称	Improvements in or relating to travelling ladders for use in telephone exchanges and the like
摘要
申请公布号	GB358052(A)	申请公布日期	1931.10.02
申请号	GB19300020095	申请日期	1930.07.02
申请人	AUTOMATIC TELEPHONE MANUFACTURING COMPANY LIMITED;SIDNEY ARTHUR WICKERSON	发明人
分类号	E06C1/397;E06C9/12	主分类号	E06C1/397
代理机构		代理人
主权项
地址

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