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United States Utility Patents
5,280,440 - 5,280,449

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NumberTitle
5,280,440 Parallel adding circuit using 3.times.3 matrix of .+-. quinary number representation
5,280,441 Semiconductor memory device
5,280,442 Read-only memory
5,280,443 Bit line structure for semiconductor memory device
5,280,444 Dram comprising stacked-type capacitor having vertically protruding part and method of manufacturing the same
5,280,445 Multi-dimensional memory cell using resonant tunneling diodes
5,280,446 Flash eprom memory circuit having source side programming
5,280,447 Floating gate nonvolatile memory with configurable erasure blocks
5,280,448 Dynamic memory with group bit lines and associated bit line group selector
5,280,449 Data memory and method of reading a data memory



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