BE429992A - - Google Patents

Info

Publication number
BE429992A
BE429992A BE429992DA BE429992A BE 429992 A BE429992 A BE 429992A BE 429992D A BE429992D A BE 429992DA BE 429992 A BE429992 A BE 429992A
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 BE429992A publication Critical patent/BE429992A/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M9/00—Arrangements for interconnection not involving centralised switching
    • H04M9/001—Two-way communication systems between a limited number of parties

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
BE429992D 1938-06-24 BE429992A (US07122603-20061017-C00294.png)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR839781T 1938-06-24

Publications (1)

Publication Number Publication Date
BE429992A true BE429992A (US07122603-20061017-C00294.png)

Family

ID=9299706

Family Applications (1)

Application Number Title Priority Date Filing Date
BE429992D BE429992A (US07122603-20061017-C00294.png) 1938-06-24

Country Status (2)

Country Link
BE (1) BE429992A (US07122603-20061017-C00294.png)
FR (1) FR839781A (US07122603-20061017-C00294.png)

Also Published As

Publication number Publication date
FR839781A (fr) 1939-04-12

Similar Documents

Publication Publication Date Title
FR847668A (US07122603-20061017-C00294.png)
FR852223A (US07122603-20061017-C00294.png)
BE426736A (US07122603-20061017-C00294.png)
BE427988A (US07122603-20061017-C00294.png)
BE428063A (US07122603-20061017-C00294.png)
BE131681A (US07122603-20061017-C00294.png)
BE427068A (US07122603-20061017-C00294.png)
BE427269A (US07122603-20061017-C00294.png)
BE427315A (US07122603-20061017-C00294.png)
NL93649B (US07122603-20061017-C00294.png)
BE427381A (US07122603-20061017-C00294.png)
NL56362C (US07122603-20061017-C00294.png)
BE427383A (US07122603-20061017-C00294.png)
BE427511A (US07122603-20061017-C00294.png)
NL54095C (US07122603-20061017-C00294.png)
BE414985A (US07122603-20061017-C00294.png)
BE427560A (US07122603-20061017-C00294.png)
BE427523A (US07122603-20061017-C00294.png)
BE429992A (US07122603-20061017-C00294.png)
BE426920A (US07122603-20061017-C00294.png)
BE436654A (US07122603-20061017-C00294.png)
NL53900C (US07122603-20061017-C00294.png)
BE427763A (US07122603-20061017-C00294.png)
BE427774A (US07122603-20061017-C00294.png)
BE427798A (US07122603-20061017-C00294.png)