NL49768C - - Google Patents

Info

Publication number
NL49768C
NL49768C NL49768DA NL49768C NL 49768 C NL49768 C NL 49768C NL 49768D A NL49768D A NL 49768DA NL 49768 C NL49768 C NL 49768C
Authority
NL
Netherlands
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 NL49768C publication Critical patent/NL49768C/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)
NL49768D 1936-11-20 NL49768C (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
NL49768C true NL49768C (enrdf_load_html_response)

Family

ID=3866209

Family Applications (1)

Application Number Title Priority Date Filing Date
NL49768D NL49768C (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
CH228093A (de) 1943-07-31
GB493668A (en) 1938-10-12
BE418493A (enrdf_load_html_response)

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