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The four auto companies merged into the auto union ag in 1932. In terms of car production, the automobile alliance was the second largest automobile manufacturing company in Germany at the time, and the merchandise was marked by four connected rings, representing four automobile companies participating in the merger. For the first time in the world, there are four rings.
A substantial reduction in the seamless rail joint, reducing the impact of rail wheels through joint, which saves line maintenance costs, prolong the service life of rail, abate the locomotive vehicle noise, etc., therefore, developed rapidly. In the 1930s, German and American railroads began to carry out small test lines, and by 1981, the world had laid a seamless line of about 300,000 kilometers, of which China lay about 8,000 kilometers
When used in business practices, technology can ensure the competitiveness of companies and other companies. But the cost of achieving, inventing or using technology, called intellectual property, is very high. Therefore, many societies, such as the United States, Europe, and Taiwan, would give the government protection from this investment, through the granting of patent, exclusive rights. This protection enables companies to invest in technical costs that can be recycled, thus encouraging innovation. But there is another point, too, that patent overprotection can hamper innovation.
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