BE418493A - - Google Patents

Info

Publication number
BE418493A
BE418493A BE418493DA BE418493A BE 418493 A BE418493 A BE 418493A BE 418493D A BE418493D A BE 418493DA BE 418493 A BE418493 A BE 418493A
Authority
BE
Belgium
Application number
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.)
Publication of BE418493A publication Critical patent/BE418493A/xx

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
    • H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Interface Circuits In Exchanges (AREA)
BE418493D 1936-11-20 BE418493A (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE228093X 1936-11-20

Publications (1)

Publication Number Publication Date
BE418493A true BE418493A (enrdf_load_html_response)

Family

ID=3866209

Family Applications (1)

Application Number Title Priority Date Filing Date
BE418493D BE418493A (enrdf_load_html_response) 1936-11-20

Country Status (5)

Country Link
BE (1) BE418493A (enrdf_load_html_response)
CH (1) CH228093A (enrdf_load_html_response)
FR (1) FR829576A (enrdf_load_html_response)
GB (1) GB493668A (enrdf_load_html_response)
NL (1) NL49768C (enrdf_load_html_response)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE965133C (de) * 1953-10-11 1957-06-06 Telefonbau & Normalzeit Gmbh Schaltungsanordnung fuer bevorzugte Sprechstellen in Fernsprechanlagen mit Waehlerbetrieb
DE1141681B (de) * 1961-04-07 1962-12-27 Huettenwerk Oberhausen Ag Fernsprechteilnehmerschaltung fuer Linien-Waehlanlagen mit Freisprecheinrichtung

Also Published As

Publication number Publication date
FR829576A (fr) 1938-06-30
GB493668A (en) 1938-10-12
CH228093A (de) 1943-07-31
NL49768C (enrdf_load_html_response)

Similar Documents

Publication Publication Date Title
IT355191A (enrdf_load_html_response)
BE415900A (enrdf_load_html_response)
BE416030A (enrdf_load_html_response)
BE415571A (enrdf_load_html_response)
NL49768C (enrdf_load_html_response)
BE415557A (enrdf_load_html_response)
BE415512A (enrdf_load_html_response)
NL57379C (enrdf_load_html_response)
NL55872C (enrdf_load_html_response)
NL48388C (enrdf_load_html_response)
NL47532C (enrdf_load_html_response)
BE413309A (enrdf_load_html_response)
BE415974A (enrdf_load_html_response)
BE422076A (enrdf_load_html_response)
BE421786A (enrdf_load_html_response)
BE421208A (enrdf_load_html_response)
BE420254A (enrdf_load_html_response)
BE416328A (enrdf_load_html_response)
BE416321A (enrdf_load_html_response)
BE416312A (enrdf_load_html_response)
BE416290A (enrdf_load_html_response)
BE416271A (enrdf_load_html_response)
BE416111A (enrdf_load_html_response)
BE414472A (enrdf_load_html_response)
BE415564A (enrdf_load_html_response)