NL36780C - - Google Patents

Info

Publication number
NL36780C
NL36780C NL36780DA NL36780C NL 36780 C NL36780 C NL 36780C NL 36780D A NL36780D A NL 36780DA NL 36780 C NL36780 C NL 36780C
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 NL36780C publication Critical patent/NL36780C/xx

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/272—Devices whereby a plurality of signals may be stored simultaneously with provision for storing only one subscriber number at a time, e.g. by keyboard or dial
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B25/00—Alarm systems in which the location of the alarm condition is signalled to a central station, e.g. fire or police telegraphic systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/26—Devices for calling a subscriber
    • H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
    • H04M1/274—Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time, e.g. using toothed disc
    • 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
    • H04M11/04—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems
    • H04M11/045—Telephonic communication systems specially adapted for combination with other electrical systems with alarm systems, e.g. fire, police or burglar alarm systems using recorded signals, e.g. speech

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Telephonic Communication Services (AREA)
  • Telephone Set Structure (AREA)
  • Devices For Supply Of Signal Current (AREA)
NL36780D 1931-12-06 NL36780C (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2099913X 1931-12-06
FR399675X 1931-12-09

Publications (1)

Publication Number Publication Date
NL36780C true NL36780C (ja)

Family

ID=31995635

Family Applications (1)

Application Number Title Priority Date Filing Date
NL36780D NL36780C (ja) 1931-12-06

Country Status (6)

Country Link
US (2) US1974551A (ja)
BE (1) BE392860A (ja)
DE (1) DE637982C (ja)
FR (3) FR42939E (ja)
GB (1) GB399675A (ja)
NL (1) NL36780C (ja)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2469278A (en) * 1947-03-18 1949-05-03 Ralph A Sears Telephone alarm system
GB682276A (en) * 1950-06-07 1952-11-05 Samuel Dunseith Mckellen Improvements in or relating to automatic alarm devices
US2661394A (en) * 1951-08-16 1953-12-01 Carsten J Munch Burglary and fire alarm
US2780671A (en) * 1952-01-30 1957-02-05 Thery Georges Telephonic alarm system
US2883460A (en) * 1953-07-14 1959-04-21 Anatol N Andrews Automatic transmission alarm
US2847507A (en) * 1953-09-11 1958-08-12 Charles R Stradley Automatic alarm system
US2830119A (en) * 1954-02-19 1958-04-08 John P Zimmerman Emergency alarm and reporting system
US10000294B2 (en) 2012-08-24 2018-06-19 The Boeing Company Aircraft fuel tank flammability reduction method and system
US9327243B2 (en) 2012-08-24 2016-05-03 The Boeing Company Aircraft fuel tank flammability reduction methods and systems
US9061249B2 (en) * 2012-08-24 2015-06-23 The Boeing Company Aircraft fuel tank flammability reduction method and system

Also Published As

Publication number Publication date
US1974551A (en) 1934-09-25
BE392860A (ja)
GB399675A (en) 1933-10-12
FR44246E (fr) 1934-12-01
FR742567A (ja) 1933-03-10
DE637982C (de) 1936-11-11
FR42939E (fr) 1934-01-06
US2099913A (en) 1937-11-23

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