FR674600A - Perfectionnements aux cadrans à aiguilles - Google Patents

Perfectionnements aux cadrans à aiguilles

Info

Publication number
FR674600A
FR674600A FR674600DA FR674600A FR 674600 A FR674600 A FR 674600A FR 674600D A FR674600D A FR 674600DA FR 674600 A FR674600 A FR 674600A
Authority
FR
France
Prior art keywords
needle dials
dials
needle
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)
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.)
Telefonaktiebolaget LM Ericsson AB
Original Assignee
Telefonaktiebolaget LM Ericsson AB
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 Telefonaktiebolaget LM Ericsson AB filed Critical Telefonaktiebolaget LM Ericsson AB
Application granted granted Critical
Publication of FR674600A publication Critical patent/FR674600A/fr
Expired legal-status Critical Current

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
    • H04M1/30—Devices which can set up and transmit only one digit at a time
    • H04M1/31—Devices which can set up and transmit only one digit at a time by interrupting current to generate trains of pulses; by periodically opening and closing contacts to generate trains of pulses

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Braking Arrangements (AREA)
FR674600D 1928-05-08 1929-05-04 Perfectionnements aux cadrans à aiguilles Expired FR674600A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE311274X 1928-05-08

Publications (1)

Publication Number Publication Date
FR674600A true FR674600A (fr) 1930-01-30

Family

ID=20307629

Family Applications (1)

Application Number Title Priority Date Filing Date
FR674600D Expired FR674600A (fr) 1928-05-08 1929-05-04 Perfectionnements aux cadrans à aiguilles

Country Status (3)

Country Link
BE (1) BE360385A (pm)
FR (1) FR674600A (pm)
GB (1) GB311274A (pm)

Also Published As

Publication number Publication date
GB311274A (en) 1930-05-08
BE360385A (pm)

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