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TELEFUNKEN Licenses GmbH
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John Crane-Houdaille, Inc.
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Beijing Samp Sunshine Technology Co., Ltd.Beijing Shi, China
LCT asÚstí nad Labem, Czechia
Chongqing Yuzhaoyao Electronic Technology Co., Ltd.Chongqing Shi, China
Technical Monitoring Center of Changqing Petroleum Exploration Bureau Co., Ltd.Shaanxi Sheng, China
Tianjin College of Beijing University of Science and Technology
Sichuan Yuguang Optical Glass Co., Ltd.Sichuan Sheng, China