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[51]Int.Cl.7 E01B 29/16 [11]授权公告号 CN 2358103 Y[21]申请号 98251964.8 专利号 ZL 98251964.8[22]申请日 1998.12.26 [24]颁证日 1999.11.13[45]授权公告日 2000.1.12[73]专利权人 洪 海 地址 157009黑龙江省牡丹江市东 新荣街铁路机械修造厂 共同专利权人 林宪军 [72
[51] Int.Cl.7 E01B 29/16 [11] Authorization Bulletin No. CN 2358103 Y [21] Application No. 98251964.8 Patent No. ZL 98251964.8 [22] Date of Application 1998.12.26 [24] Date of Certification 1999.11.13 [45 ] Authorization announcement day 2000.1.12 [73] patentee Honghai address 157009 Mudanjiang City, Heilongjiang Province East Xinrong Street Railway Machinery repair plant co-patentee Lin Xianjun [72