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Priority claimed from DE19883820315external-prioritypatent/DE3820315C1/en
Priority claimed from DE19883824190external-prioritypatent/DE3824190C2/en
Application filed by Telefonbau & Normalzeit GmbhfiledCriticalTelefonbau & Normalzeit Gmbh
Application grantedgrantedCritical
Publication of ATE105663T1publicationCriticalpatent/ATE105663T1/en
AT8989103702T1988-06-151989-03-03
PROCEDURE FOR MUTUAL DATA EXCHANGE BETWEEN A COMMUNICATIONS SWITCHING SYSTEM AND A STAFF TIME RECORDING SYSTEM.
ATE105663T1
(en)