Improvements in or relating to lead pencils,申请号GB19390017583-传众专利搜索

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发明名称	Improvements in or relating to lead pencils
摘要
申请公布号	GB530082(A)	申请公布日期	1940.12.04
申请号	GB19390017583	申请日期	1939.06.16
申请人	JAMES WILD	发明人
分类号	B43K29/02	主分类号	B43K29/02
代理机构		代理人
主权项
地址

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