FR1257479A - Improvements to electrical testing devices - Google Patents

Improvements to electrical testing devices

Info

Publication number
FR1257479A
FR1257479A FR827821A FR827821A FR1257479A FR 1257479 A FR1257479 A FR 1257479A FR 827821 A FR827821 A FR 827821A FR 827821 A FR827821 A FR 827821A FR 1257479 A FR1257479 A FR 1257479A
Authority
FR
France
Prior art keywords
electrical testing
testing devices
electrical
devices
testing
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
FR827821A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honeywell Inc
Original Assignee
Honeywell Inc
Minneapolis Honeywell Regulator Co
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 by Honeywell Inc, Minneapolis Honeywell Regulator Co filed Critical Honeywell Inc
Priority to FR827821A priority Critical patent/FR1257479A/en
Application granted granted Critical
Publication of FR1257479A publication Critical patent/FR1257479A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/22—Arrangements for supervision, monitoring or testing
    • H04M3/26—Arrangements for supervision, monitoring or testing with means for applying test signals or for measuring
    • G—PHYSICS
    • G08—SIGNALLING
    • G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
    • G08B26/00—Alarm systems in which substations are interrogated in succession by a central station

Landscapes

  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR827821A 1959-05-21 1960-05-20 Improvements to electrical testing devices Expired FR1257479A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR827821A FR1257479A (en) 1959-05-21 1960-05-20 Improvements to electrical testing devices

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US886910XA 1959-05-21 1959-05-21
FR827821A FR1257479A (en) 1959-05-21 1960-05-20 Improvements to electrical testing devices

Publications (1)

Publication Number Publication Date
FR1257479A true FR1257479A (en) 1961-03-31

Family

ID=26186108

Family Applications (1)

Application Number Title Priority Date Filing Date
FR827821A Expired FR1257479A (en) 1959-05-21 1960-05-20 Improvements to electrical testing devices

Country Status (1)

Country Link
FR (1) FR1257479A (en)

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