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公开(公告)号：WO1997040457A3
公开(公告)日：1997-10-30
申请号：PCT/US1997006468
申请日：1997-04-17
Applicant: INTERGRAPH CORPORATION
Inventor： INTERGRAPH CORPORATION , BISBEE, Robert, T. , EVANS, Cynthia, H. , THOMAS, Robert, O.
IPC: H04L29/06
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