NL30220C - - Google Patents

Info

Publication number
NL30220C
NL30220C NL30220DA NL30220C NL 30220 C NL30220 C NL 30220C NL 30220D A NL30220D A NL 30220DA NL 30220 C NL30220 C NL 30220C
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 NL30220C publication Critical patent/NL30220C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M11/00—Telephonic communication systems specially adapted for combination with other electrical systems
    • H04M11/007—Telephonic communication systems specially adapted for combination with other electrical systems with remote control systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Automation & Control Theory (AREA)
  • Interface Circuits In Exchanges (AREA)
  • Alarm Systems (AREA)
NL30220D 1928-12-15 NL30220C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES88951D DE659819C (de) 1928-12-15 1928-12-15 Schaltungsanordnung fuer Alarmanlagen

Publications (1)

Publication Number Publication Date
NL30220C true NL30220C (fr)

Family

ID=7514778

Family Applications (1)

Application Number Title Priority Date Filing Date
NL30220D NL30220C (fr) 1928-12-15

Country Status (4)

Country Link
CH (1) CH146137A (fr)
DE (1) DE659819C (fr)
FR (1) FR686538A (fr)
NL (1) NL30220C (fr)

Also Published As

Publication number Publication date
CH146137A (de) 1931-03-31
DE659819C (de) 1938-05-11
FR686538A (fr) 1930-07-28

Similar Documents

Publication Publication Date Title
NL30220C (fr)
BE267873A (fr)
BE283147A (fr)
BE302117A (fr)
BE302864A (fr)
BE303782A (fr)
BE313010A (fr)
BE313099A (fr)
BE317010A (fr)
BE318611A (fr)
BE323769A (fr)
BE331538A (fr)
BE333487A (fr)
BE337939A (fr)
BE341382A (fr)
BE346318A (fr)
BE346330A (fr)
BE346414A (fr)
BE346912A (fr)
BE347699A (fr)
BE347774A (fr)
BE347852A (fr)
BE347916A (fr)
BE347991A (fr)
BE348032A (fr)