FR508307A - Perfectionnements aux standards - Google Patents

Perfectionnements aux standards

Info

Publication number
FR508307A
FR508307A FR508307A FR508307DA FR508307A FR 508307 A FR508307 A FR 508307A FR 508307 A FR508307 A FR 508307A FR 508307D A FR508307D A FR 508307DA FR 508307 A FR508307 A FR 508307A
Authority
FR
France
Prior art keywords
standards
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
FR508307A
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.)
Regina Co Inc
Original Assignee
Regina Co Inc
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 Regina Co Inc filed Critical Regina Co Inc
Application granted granted Critical
Publication of FR508307A publication Critical patent/FR508307A/fr
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M5/00—Manual exchanges
    • H04M5/02—Constructional details

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR508307A 1920-01-10 1920-01-10 Perfectionnements aux standards Expired FR508307A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR508307T 1920-01-10

Publications (1)

Publication Number Publication Date
FR508307A true FR508307A (fr) 1920-10-07

Family

ID=8910290

Family Applications (1)

Application Number Title Priority Date Filing Date
FR508307A Expired FR508307A (fr) 1920-01-10 1920-01-10 Perfectionnements aux standards

Country Status (1)

Country Link
FR (1) FR508307A (fr)

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