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地质勘查废弃钻孔和声波测距技术的地下水位监测装置

Patent Applicant: Luo, 赵永杰, 张辉傲

Type of Patent: Utility model patent

Authorization number: ZL202120239361.7

Service Invention or Not: no

Authorization Date: 2021-10-15

First Author: Luo