FR712007A - Compteur de durée - Google Patents

Compteur de durée

Info

Publication number
FR712007A
FR712007A FR712007DA FR712007A FR 712007 A FR712007 A FR 712007A FR 712007D A FR712007D A FR 712007DA FR 712007 A FR712007 A FR 712007A
Authority
FR
France
Prior art keywords
duration counter
duration
counter
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
English (en)
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.)
ATELIERS BRILLIE FRERES SA
Original Assignee
ATELIERS BRILLIE FRERES SA
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 ATELIERS BRILLIE FRERES SA filed Critical ATELIERS BRILLIE FRERES SA
Application granted granted Critical
Publication of FR712007A publication Critical patent/FR712007A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M3/00—Automatic or semi-automatic exchanges
    • H04M3/08—Indicating faults in circuits or apparatus
    • H04M3/12—Marking faulty circuits "busy"; Enabling equipment to disengage itself from faulty circuits ; Using redundant circuits; Response of a circuit, apparatus or system to an error

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Measurement Of Unknown Time Intervals (AREA)
FR712007D 1930-06-06 1930-06-06 Compteur de durée Expired FR712007A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR712007T 1930-06-06

Publications (1)

Publication Number Publication Date
FR712007A true FR712007A (fr) 1931-09-23

Family

ID=9078037

Family Applications (1)

Application Number Title Priority Date Filing Date
FR712007D Expired FR712007A (fr) 1930-06-06 1930-06-06 Compteur de durée

Country Status (2)

Country Link
US (1) US1945990A (fr)
FR (1) FR712007A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2674657A (en) * 1949-04-04 1954-04-06 Itt Primary-secondary-spread crossbar telephone system

Also Published As

Publication number Publication date
US1945990A (en) 1934-02-06

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