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Patent applications and USPTO patent grants for Berggren, Jan.The latest application filed is for "simultaneous signing of a paper and a digital document".
Patent | Date |
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Simultaneous signing of a paper and a digital document App 20040193543 - Nord, Rolf Lennart ;   et al. | 2004-09-30 |
Method of detecting ground faults in a network for distribution of electric power and a device for carrying out the method Grant 4,529,929 - Berggren July 16, 1 | 1985-07-16 |
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