INTERNATIONAL PATENT: NANJING HANG DA CHAO KONG TECHNOLOGY CO., LTD, 南京航达超控科技有限公司, NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, 南京航空航天大学 FILES APPLICATION FOR "FREQUENCY DIFFERENCE ADJUSTING CIRCUIT AND METHOD BASED ON ULTRA-HIGH PERFORMANCE OUTPUT OF ULTRASONIC MOTOR"

GENEVA, May 4 -- NANJING HANG DA CHAO KONG TECHNOLOGY CO., LTD (Floor 1, No.1 Factory Building, No.69 Feitian Avenue, Jiangning Airport Economic Development ZoneNanjing, Jiangsu 211113), 南京航达超控科技有限公司 (中国江苏省南京市江宁空港经济开发区飞天大道69号一号厂房一层), NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS (No.29 Yudao Street, Qinhuai DistrictNanjing, Jiangsu 210016), 南京航空航天大学 (中国江苏省南京...