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Patent applications and USPTO patent grants for Kim; Cheon S..The latest application filed is for "method of processing intelligent network service call with dtmf subscriber signalling in electronic switching system for toll/tandem".
Patent | Date |
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Method of processing intelligent network service call with DTMF subscriber signalling in electronic switching system for toll/tandem Grant 5,448,617 - Hong , et al. September 5, 1 | 1995-09-05 |
Trench DRAM cell with vertical transistor Grant 5,252,845 - Kim , et al. October 12, 1 | 1993-10-12 |
Method of manufacturing DRAM cell having a cup shaped polysilicon storage electrode Grant 5,185,282 - Lee , et al. February 9, 1 | 1993-02-09 |
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