FR29371E - Improvements to fire alarm systems - Google Patents

Improvements to fire alarm systems

Info

Publication number
FR29371E
FR29371E FR29371DA FR29371E FR 29371 E FR29371 E FR 29371E FR 29371D A FR29371D A FR 29371DA FR 29371 E FR29371 E FR 29371E
Authority
FR
France
Prior art keywords
fire alarm
alarm systems
systems
fire
alarm
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
Other languages
French (fr)
Inventor
Edmond Half
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.)
Filing date
Publication date
Application filed filed Critical
Application granted granted Critical
Publication of FR29371E publication Critical patent/FR29371E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
    • G01K3/00—Thermometers giving results other than momentary value of temperature
    • G01K3/08—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values
    • G01K3/10—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature
    • G01K3/12—Thermometers giving results other than momentary value of temperature giving differences of values; giving differentiated values in respect of time, e.g. reacting only to a quick change of temperature based upon expansion or contraction of materials

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR29371D 1924-06-03 1924-06-03 Improvements to fire alarm systems Expired FR29371E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR29371T 1924-06-03

Publications (1)

Publication Number Publication Date
FR29371E true FR29371E (en) 1925-07-25

Family

ID=8667402

Family Applications (1)

Application Number Title Priority Date Filing Date
FR29371D Expired FR29371E (en) 1924-06-03 1924-06-03 Improvements to fire alarm systems

Country Status (1)

Country Link
FR (1) FR29371E (en)

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