BE578042A - Appareil téléphonique - Google Patents

Appareil téléphonique

Info

Publication number
BE578042A
BE578042A BE578042A BE578042A BE578042A BE 578042 A BE578042 A BE 578042A BE 578042 A BE578042 A BE 578042A BE 578042 A BE578042 A BE 578042A BE 578042 A BE578042 A BE 578042A
Authority
BE
Belgium
Prior art keywords
telephone device
telephone
Prior art date
Application number
BE578042A
Other languages
English (en)
Original Assignee
Ericsson Telefon Ab L M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ericsson Telefon Ab L M filed Critical Ericsson Telefon Ab L M
Publication of BE578042A publication Critical patent/BE578042A/fr

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
    • H04M1/62—Constructional arrangements

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Telephone Set Structure (AREA)
BE578042A 1958-05-02 1959-04-23 Appareil téléphonique BE578042A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE423358 1958-05-02

Publications (1)

Publication Number Publication Date
BE578042A true BE578042A (fr) 1959-08-17

Family

ID=20263766

Family Applications (1)

Application Number Title Priority Date Filing Date
BE578042A BE578042A (fr) 1958-05-02 1959-04-23 Appareil téléphonique

Country Status (6)

Country Link
US (1) US3069508A (fr)
BE (1) BE578042A (fr)
DE (1) DE1127406B (fr)
DK (1) DK97830C (fr)
FR (1) FR1223141A (fr)
GB (1) GB909164A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3751600A (en) * 1971-12-22 1973-08-07 Bell Telephone Labor Inc Combination microphone and control stand for loudspeaking telephone set
US4078155A (en) * 1977-01-17 1978-03-07 Northern Telecom Limited Telephone apparatus for use in a conference room
US5912967A (en) * 1997-09-11 1999-06-15 3Com Corp. Speaker-phone assembly and method
US6016346A (en) * 1997-10-21 2000-01-18 3Com Corporation Low-profile speakerphone with downward oriented microphone configuration

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1385286A (en) * 1919-03-25 1921-07-19 John S Timmons Telephone
US2385279A (en) * 1943-01-27 1945-09-18 Bell Telephone Labor Inc Distant talking loud-speaker telephone system
US2392321A (en) * 1944-05-30 1946-01-08 Bell Telephone Labor Inc Desk telephone set
US2542922A (en) * 1945-07-02 1951-02-20 Automatic Elect Lab Loud speaking telephine instrument
BE474660A (fr) * 1946-08-17
US2578367A (en) * 1949-07-28 1951-12-11 Bell Telephone Labor Inc Telephone mounting
DE1029048B (de) * 1956-10-27 1958-04-30 Allg Telefon Fabrik G M B H Wechselsprechanlage mit gleichberechtigten Teilnehmerstellen

Also Published As

Publication number Publication date
GB909164A (en) 1962-10-24
US3069508A (en) 1962-12-18
DE1127406B (de) 1962-04-12
DK97830C (da) 1964-01-27
FR1223141A (fr) 1960-06-15

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