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Patent applications and USPTO patent grants for Stolz; Helmut.The latest application filed is for "process and device for transmitting confidential connection establishment and service information between subscriber terminals and one or more digital exchanges".
Patent | Date |
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Process and device for transmitting confidential connection establishment and service information between subscriber terminals and one or more digital exchanges Grant 6,708,275 - Stolz March 16, 2 | 2004-03-16 |
Process and device for authenticating subscribers to digital exchanges Grant 6,317,830 - Stolz November 13, 2 | 2001-11-13 |
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