FR473276A - Improvements in wireless telegraphy devices - Google Patents

Improvements in wireless telegraphy devices

Info

Publication number
FR473276A
FR473276A FR473276DA FR473276A FR 473276 A FR473276 A FR 473276A FR 473276D A FR473276D A FR 473276DA FR 473276 A FR473276 A FR 473276A
Authority
FR
France
Prior art keywords
devices
wireless telegraphy
telegraphy
wireless
telegraphy devices
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)
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.)
Ancel & Cotty Soc
Original Assignee
Ancel & Cotty Soc
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 Ancel & Cotty Soc filed Critical Ancel & Cotty Soc
Application granted granted Critical
Publication of FR473276A publication Critical patent/FR473276A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F21/00—Variable inductances or transformers of the signal type
    • H01F21/12—Variable inductances or transformers of the signal type discontinuously variable, e.g. tapped

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
FR473276D 1913-07-10 1914-06-10 Improvements in wireless telegraphy devices Expired FR473276A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE473276X 1913-07-10

Publications (1)

Publication Number Publication Date
FR473276A true FR473276A (en) 1915-01-07

Family

ID=1511354

Family Applications (1)

Application Number Title Priority Date Filing Date
FR473276D Expired FR473276A (en) 1913-07-10 1914-06-10 Improvements in wireless telegraphy devices

Country Status (1)

Country Link
FR (1) FR473276A (en)

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