The world's first coordinate measuring machine was born in where?

1973 German mechanical designer Zeiss invented the Zeiss (Carl Zeiss) is a world-renowned manufacturer of precision optical instrumentation products, by the famous German mechanic Carl Zeiss? Mr. Zeiss was founded in 1846 in Jena, Germany, and then with the physicist Ernst Abe and chemist Otto. Then, together with the physicist Prof. Ernst Abbe and the chemist Dr. Otto Schott***, the Zeiss Foundation was established. The company is now managed by the Zeiss Foundation, which is now part of the German government. The company has a history of more than one hundred and fifty years, and the former German Chancellor Kohl came to Zeiss to deliver a congratulatory speech at the company's 150th anniversary ceremony in 1996. The company is now headquartered in Oberkochen, Germany, with several divisions for civil optics, industrial measuring instruments, microscopes, medical instruments, semiconductor technology and opto-electronic systems. 1973 saw the successful manufacture of the world's first CNC three-coordinate measuring machine, the UMM500, and every year since then new specialties have been developed, such as electromagnetic suction cups for probe mounting, CARAT spindles for ultra-precision measuring machines, and new technology for measuring instruments, such as the UMM500. The unique probes developed by ZEISS are in the forefront: the ST3 probe with the double-trigger principle, the RDS/RST rotary probe with two mutually perpendicular axes that can be rotated by ±180 and 2.5 divisions, the active high-speed scanning VST for scanning measuring machines, the UMM500, the world's first CNC three-coordinate measuring machine, and every year thereafter, new specialties are developed, such as electromagnetic suction cups for mounting probes, the CARAT spindle for ultra-precision measuring machines, and the temperature-insensitive, zero-expansion coefficient ZERODUR ?0.3 encoder scale for precision measuring machines. The active high-speed scanning VAST universal scanning probe for scanning measuring machines, the non-contact optical measuring probe VISCAN, the laser scanning probe AutoSCAN, etc. In addition, ZEISS has a unique rotary milling head that can directly process all kinds of models on the CMM. So far ZEISS has a number of patented technology, so that ZEISS company in the coordinate measurement technology is far ahead of other companies. ZEISS Far East Ltd. is a branch of ZEISS Germany in the Far East, which was established in Hong Kong in the early eighties. Its main task is product sales and technical service. With the continuous development of the company, it now has two companies (ZEISS FAR EAST LIMITED [HONG KONG], ZEISS OPTICS (SHANGHAI) INTERNATIONAL TRADING COMPANY LIMITED [SHANGHAI]), two technical training centers (HONG KONG, SHANGHAI), and three representative offices (BEIJING, SHANGHAI, GUANGZHOU). ZEISS has the most comprehensive after-sales service team in China, with many professional technical experts, to provide users with professional, rigorous and timely after-sales service. 1999, ZEISS in Shanghai Waigaoqiao Free Trade Zone established in addition to the German mainland's largest product exhibition and training center, at the same time, there are a variety of parts of the spare parts warehouse, which greatly shortens the replacement of spare parts repair cycle, to better and faster service for Chinese users. ZEISS has more than 300 staffs in China. ZEISS has more than 300 customers in China and more than 400 sets of equipments are used in many industries. ZEISS is the inventor and leader of CNC CMM; ZEISS is the world's largest manufacturer of CNC CMM;