In other projects Wikimedia Commons. Please help improve it by removing promotional content and inappropriate external links , and by adding encyclopedic content written from a neutral point of view. From Wikipedia, the free encyclopedia. OKI was also aware of learning new telecommunication technologies, and in , it was the first to produce a line Ericsson-type crossbar-switching systems for commercial use. This article contains content that is written like an advertisement. Japanese manufacturing company. July Learn how and when to remove this template message. Retrieved on March 12,
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