Patent Value Evaluation of Agricultural Machinery Equipment#br#
LIU Qin1, WANG Shaokang2, HU Lianglong1, ZHENG Yanyan1, TAN Lvke1
Journal of Agricultural Science and Technology . 2017, (5): 86 -91 .  DOI: 10.13304/j.nykjdb.2016.632

京ICP备12031475号-3　京公网安备11010802021197号
Copyright © Journal of Agricultural Science and Technology, All Rights Reserved.
Tel: 010-82109848　E-mail: nykjdb@163.com; nkdb@caas.cn
Powered by Beijing Magtech Co., Ltd.