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[51]Int。CL．5B61H11／10B61H11/10[21]申请号932054625．专利号ZL92245395．0[22]申请日92.12.24[24]颁证日93．9．26[73]专利权人宋增地址467400河南省宝丰县杨庄宝丰机务段[72]设计人宋增[74]专利代理机构河南省专利代理中心代理人杨妙琴唐建元[54]实用新型名称折角塞门[57
[51] Int. CL. 5B61H11 / 10B61H11 / 10 [21] Application No. 932054625. Patent No. ZL92245395.0 [22] The application date 92.12.24 [24] The certificate date 93.9.26 [73] The patent owner Song Zeng address 467400 Baofeng County, 74] Patent Agent Agent Center of Henan Province, Yang Miaoqin, Tang Jianyuan [54] Name of utility model door hinge [57