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Patent applications and USPTO patent grants for Whildin; Kathleen C..The latest application filed is for "private branch exchange networks".
Patent | Date |
---|---|
Private branch exchange networks Grant 5,422,943 - Cooney , et al. June 6, 1 | 1995-06-06 |
Intraswitch transition to new line support equipment Grant 5,369,696 - Krauss , et al. November 29, 1 | 1994-11-29 |
Call waiting deluxe feature Grant 5,309,512 - Blackmon , et al. May 3, 1 | 1994-05-03 |
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