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国家专利、鉴定项目、成果与荣誉证书顺号专利名称专利号申请日授权时间种类1铁路车辆减速顶85103140.41985.4.271987.12发明2可控减速顶85103136.61985.4.271986.7发明3铁路车辆加速顶85103300.8198...
National patent, appraisal project, achievement and honor Certificate No. Patent name Patent number Application date Authorization Time Category 1 Railway vehicle deceleration top 85103140.41985.4.271987.12 Invention 2 Controllable deceleration top 85103136.61985.4.271986.7 Invention 3 railway vehicle acceleration top 85103300.8198 ...