METHOD OF PREPARING END OF DOUBLE-LAYER RIBBED PIPE AND DEVICE FOR EFFECTING SAME,申请号SU19823551800-传众专利搜索

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发明名称	METHOD OF PREPARING END OF DOUBLE-LAYER RIBBED PIPE AND DEVICE FOR EFFECTING SAME
摘要
申请公布号	SU1129037(A1)	申请公布日期	1984.12.15
申请号	SU19823551800	申请日期	1982.12.03
申请人	KISELEV BORIS E,SU;SHTEJNMAN VLADIMIR V,SU	发明人	KISELEV BORIS E,SU;SHTEJNMAN VLADIMIR V,SU
分类号	B23D21/04;B21C37/26;(IPC1-7):B23D21/04	主分类号	B23D21/04
代理机构		代理人
主权项
地址

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