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1971-06-18 |
1973-01-26 |
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1971-06-23 |
1977-09-20 |
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Dual computer system
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1972-02-25 |
1978-09-19 |
International Standard Electric Corporation |
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1972-03-17 |
1973-10-26 |
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1972-08-25 |
1976-06-08 |
International Telephone And Telegraph Corporation |
Switching network and peripheral circuits for telecommunications system
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1973-02-08 |
1978-06-13 |
Societe Francaise Des Telephones Ericsson |
Electronic telephone switching system of the stored program type comprising two active stages and one passive stage
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1973-06-08 |
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Bourdais Roger |
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1973-08-29 |
1977-06-21 |
Siemens Aktiengesellschaft |
Arrangement for fault diagnosis in the communication controller of a program controlled data switching system
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1973-09-10 |
1975-05-30 |
Honeywell Bull Soc Ind |
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1974-02-15 |
1975-08-21 |
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1974-03-13 |
1976-01-06 |
Bell Telephone Laboratories, Incorporated |
Program controlled data processor
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1974-03-21 |
1975-06-17 |
Bell Telephone Labor Inc |
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1974-09-27 |
1975-09-23 |
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Fault detection system for a telephone exchange
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1975-03-20 |
1976-05-18 |
Bell Telephone Laboratories, Incorporated |
Remote diagnostic apparatus
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1975-06-17 |
1979-10-30 |
Cselt Centro Studi Lab Telecom |
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1975-07-23 |
1977-08-16 |
Johnson Controls, Inc. |
Multiple message frame adaptor apparatus for loop communication system
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1975-12-22 |
1977-08-02 |
Bell Telephone Laboratories, Incorporated |
Recorder transfer arrangement maintaining billing data continuity
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1976-11-15 |
1978-07-04 |
Honeywell Information Systems Inc. |
Input/output processing system utilizing locked processors
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1976-12-20 |
1978-05-23 |
Honeywell Information Systems Inc. |
Input/output maintenance access apparatus
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1977-08-22 |
1983-09-29 |
Siemens AG, 1000 Berlin und 8000 München |
Zeitmultiplex-Digital-Vermittlungsanlage, insbesondere PCM-Fernsprechvermittlungsanlage, mit doppelt vorgesehenen Koppelfeldeinrichtungen
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1978-04-14 |
1982-04-07 |
Lucas Industries Ltd |
Digital computing apparatus
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1979-02-17 |
1987-04-16 |
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Switch controller
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Vinca Corporation |
Backup system that takes a snapshot of the locations in a mass storage device that has been identified for updating prior to updating
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一种电话呼入处理方法及装置
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