|
US4184054A
(en)
*
|
1977-03-28 |
1980-01-15 |
Tokyo Shibaura Electric Co., Ltd. |
Key telephone system
|
|
US4173714A
(en)
*
|
1977-06-03 |
1979-11-06 |
Tie/Communications, Inc. |
Communication circuit with combined power feed and data transmission over a phantom channel
|
|
US4150259A
(en)
*
|
1977-10-31 |
1979-04-17 |
Bell Telephone Laboratories, Incorporated |
Communication system conferencing arrangement
|
|
US4109113A
(en)
*
|
1977-10-31 |
1978-08-22 |
Bell Telephone Laboratories, Incorporated |
Communication system optimized pooled line arrangement
|
|
US4125748A
(en)
*
|
1977-10-31 |
1978-11-14 |
Bell Telephone Laboratories, Incorporated |
Communication system call transfer arrangement
|
|
US4150257A
(en)
*
|
1977-10-31 |
1979-04-17 |
Bell Telephone Laboratories, Incorporated |
Communication system call coverage arrangements
|
|
US4166199A
(en)
*
|
1977-11-25 |
1979-08-28 |
Stromberg-Carlson Corporation |
Attendant console complex
|
|
US4203011A
(en)
*
|
1978-01-17 |
1980-05-13 |
Tie/Communications, Inc. |
Computer controlled key telephone station set
|
|
US4229815A
(en)
*
|
1978-11-20 |
1980-10-21 |
Bell Telephone Laboratories, Incorporated |
Full duplex bit synchronous data rate buffer
|
|
US4220827A
(en)
*
|
1979-02-21 |
1980-09-02 |
Bell Telephone Laboratories, Incorporated |
Telephone signaling circuit
|
|
US4216356A
(en)
*
|
1979-02-21 |
1980-08-05 |
Bell Telephone Laboratories, Incorporated |
Telephone having separate voice and signaling pairs
|
|
US4291199A
(en)
*
|
1979-03-28 |
1981-09-22 |
Bell Telephone Laboratories, Incorporated |
Communication system tracking arrangement
|
|
US4292474A
(en)
*
|
1979-08-13 |
1981-09-29 |
Oki Electronics Of America, Inc. |
Electronic key telephone system with bi-directional serial data stream station control
|
|
US4309755A
(en)
*
|
1979-08-22 |
1982-01-05 |
Bell Telephone Laboratories, Incorporated |
Computer input/output arrangement for enabling a simultaneous read/write data transfer
|
|
US4382163A
(en)
*
|
1979-10-03 |
1983-05-03 |
Gte Automatic Electric Labs Inc. |
Microcomputer controlled key telephone line circuit
|
|
DE2949499C2
(de)
*
|
1979-12-08 |
1982-06-03 |
Krone Gmbh, 1000 Berlin |
Anzeigeeinrichtung für Symbole der Fernsprechtechnik
|
|
FR2481031B1
(fr)
*
|
1980-04-22 |
1988-06-10 |
Telephonie Ind Commerciale |
Terminal d'intercommunication universel
|
|
US4315110A
(en)
*
|
1980-04-28 |
1982-02-09 |
International Telephone And Telegraph Corporation |
Multiple line telephone instrument
|
|
US4296282A
(en)
*
|
1980-06-30 |
1981-10-20 |
Bell Telephone Laboratories, Incorporated |
Incoming call identification arrangement
|
|
DE3036182C2
(de)
*
|
1980-09-25 |
1983-12-01 |
Siemens AG, 1000 Berlin und 8000 München |
Verfahren zur wechselseitigen Übertragung von binären Digitalsignalen zwischen einer zentralen Einrichtung und mit ihr verbundenen Fernsprechteilnehmerstellen
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|
US4374308A
(en)
*
|
1981-04-30 |
1983-02-15 |
Siemens Corporation |
I-Use indication in a telephone keyset
|
|
USD275195S
(en)
|
1981-07-30 |
1984-08-21 |
Telecommunications Radioelectriques & Telephoniques |
Telephone
|
|
DE3131360A1
(de)
*
|
1981-08-07 |
1983-04-28 |
Siemens AG, 1000 Berlin und 8000 München |
Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen und mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
|
|
DE3131298A1
(de)
*
|
1981-08-07 |
1983-02-24 |
Siemens AG, 1000 Berlin und 8000 München |
Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen und mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
|
|
DE3131343A1
(de)
*
|
1981-08-07 |
1983-03-03 |
Siemens AG, 1000 Berlin und 8000 München |
Schaltungsanordnung fuer kleine nebenstellenanlagen mit einer den teilnehmerstellen gemeinsamen u. mit hilfe einer steuerrechnereinheit vermittlungsvorgaenge abwickelnden einrichtung
|
|
DE3132971A1
(de)
*
|
1981-08-20 |
1983-03-03 |
Siemens AG, 1000 Berlin und 8000 München |
Schaltungsanordnung fuer fernsprechvermittlungsanlagen, insbesondere kleine nebenstellenanlagen, bei denen zwischen den teilnehmerstellen und einer ihnen gemeinsamen einrichtung eine signalisierung vorgenommen wird
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|
USD286042S
(en)
|
1981-11-07 |
1986-10-07 |
Tokyo Shibaura Denki Kabushiki Kaisha |
Telephone
|
|
JPS58195393A
(ja)
*
|
1982-05-10 |
1983-11-14 |
Nec Corp |
ボタン電話装置
|
|
US4449017A
(en)
*
|
1982-05-28 |
1984-05-15 |
Bell Telephone Laboratories, Incorporated |
ACD Combined handset and headset arrangement
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|
US4451705A
(en)
*
|
1982-05-28 |
1984-05-29 |
Bell Telephone Laboratories, Incorporated |
Call completion circuit and method
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|
USD288810S
(en)
|
1982-10-04 |
1987-03-17 |
KabushikiKaisha Taikodenki Seisakusho |
Telephone
|
|
CA1188831A
(en)
*
|
1982-12-14 |
1985-06-11 |
Mitel Corporation |
Telephone indicator
|
|
JPS59160397A
(ja)
*
|
1983-03-03 |
1984-09-11 |
Toshiba Corp |
ボタン電話装置におけるボタン電話機の機能割当て方式
|
|
USD282258S
(en)
|
1983-07-18 |
1986-01-21 |
Tie/Communications, Inc. |
Base for a telephone set
|
|
USD282168S
(en)
|
1983-07-18 |
1986-01-14 |
Tie/Communications, Inc. |
Base for a telephone set
|
|
USD282167S
(en)
|
1983-07-18 |
1986-01-14 |
Tie/Communications, Inc. |
Base for a telephone set
|
|
GB8413208D0
(en)
*
|
1984-05-23 |
1984-06-27 |
Plessey Co Plc |
Telecommunication systems
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|
US4644106A
(en)
*
|
1985-01-10 |
1987-02-17 |
Inventa Electronics Co., Ltd. |
Apparatus for timely controlling the sound characteristic of a signaling means of a voice communication device
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|
JPS61212990A
(ja)
*
|
1985-03-18 |
1986-09-20 |
Nitsuko Ltd |
内線電話機呼出方式
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EP0195635B1
(en)
*
|
1985-03-20 |
1993-05-26 |
Nec Corporation |
Key telephone system
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|
USD300931S
(en)
|
1985-08-26 |
1989-05-02 |
Stierwalt Harry M |
Face panel for a telephone stand
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|
USD293441S
(en)
|
1986-06-19 |
1987-12-29 |
American Telephone And Telegraph Company |
Telephone stand
|
|
USD293321S
(en)
|
1986-06-19 |
1987-12-22 |
American Telephone & Telegraph Company, At&T Information Systems Inc. |
Telephone stand
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US4800438A
(en)
*
|
1987-12-08 |
1989-01-24 |
Yuter Seymour C |
Telephone console for restaurant tables
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USD320797S
(en)
|
1989-07-13 |
1991-10-15 |
Meisei Electric Co., Ltd. |
Telephone instrument set
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USD318661S
(en)
|
1990-07-16 |
1991-07-30 |
International Telecommunication Corp. |
Telephone base
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|
USD326263S
(en)
|
1990-07-16 |
1992-05-19 |
International Telecommunication Corp. |
Telephone base with display
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|
USD328295S
(en)
|
1991-05-23 |
1992-07-28 |
Northern Telecom Limited |
Base for a telephone set
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|
USD330028S
(en)
|
1991-05-23 |
1992-10-06 |
Northern Telecom Limited |
Base for a telephone set
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WO1998056155A1
(en)
*
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1997-06-05 |
1998-12-10 |
Noach Uziel Malimovka |
System and method to set up a communication based on identification cards
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WO1999053627A1
(en)
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1998-04-10 |
1999-10-21 |
Chrimar Systems, Inc. Doing Business As Cms Technologies |
System for communicating with electronic equipment on a network
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USD452489S1
(en)
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2000-12-20 |
2001-12-25 |
Kabushiki Kaisha Toshiba |
Telephone
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USD552589S1
(en)
*
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2005-10-28 |
2007-10-09 |
Kabushiki Kaisha Toshiba |
Telephone set
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