Improvements in and relating to hoisting devices comprising a jib or boom,申请号GB19550035721-传众专利搜索

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发明名称	Improvements in and relating to hoisting devices comprising a jib or boom
摘要
申请公布号	GB791534(A)	申请公布日期	1958.03.05
申请号	GB19550035721	申请日期	1955.12.13
申请人	IB BIRGER VILHELM FISCHER;KARL-ERIK JOHANSSON	发明人
分类号	B66C23/60;B66C23/66	主分类号	B66C23/60
代理机构		代理人
主权项
地址

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