Improved method of and apparatus for manufacturing concrete pipes,申请号GB19330017556-传众专利搜索

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发明名称	Improved method of and apparatus for manufacturing concrete pipes
摘要
申请公布号	GB421583(A)	申请公布日期	1934.12.20
申请号	GB19330017556	申请日期	1933.06.20
申请人	GWYNNE BURNELL BRADER	发明人
分类号	B28B21/12	主分类号	B28B21/12
代理机构		代理人
主权项
地址

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