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[51]Int.Cl.6E01B 27/12 [11]授权公告号 CN 2339613Y[21]申请号 98241441.2 专利号 ZL 98241441.2[22]申请日 98.10.23 [24]颁证日 99.8.7[45]授权公告日 99.9.22[73]专利权人 石家庄铁路分局保定工务 段 地 址 071000河北省保定市火车 站内甲 2号 [72]设计人 张立昌
[51] Int.Cl.6E01B 27/12 [11] Grant No. CN 2339613Y [21] Application No. 98241441.2 Patent No. ZL 98241441.2 [22] Application No. 98.10.23 [24] Date of Certification 99.8.7 [45] Authorization Announcement 99.9.22 [73] The patentee Shijiazhuang Railway Branch Baoding work section address 071000 Baoding City, Hebei Province, a railway station in the No. 2 [72] Designer Zhang Lichang