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United States Utility Patents
4,947,380 - 4,947,389

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NumberTitle
4,947,380 Multi-mode memory device
4,947,381 367/75 367/31 367/47 702/14
4,947,382 Direct digital locked loop
4,947,383 Machine readable markers for cartesian information storage media
4,947,384 Optical disk having narrow and wide guide grooves
4,947,385 Monitoring system for a local bus network in a star structure
4,947,386 Fixed gain fixed loss amplification system
4,947,387 Switching node for switching data signals transmitted in data packets
4,947,388 Cell switching system of asynchronous transfer mode
4,947,389 Multi-channel ring architecture for distributed networks



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