FR776635A - Improvements to tracking devices - Google Patents

Improvements to tracking devices

Info

Publication number
FR776635A
FR776635A FR776635DA FR776635A FR 776635 A FR776635 A FR 776635A FR 776635D A FR776635D A FR 776635DA FR 776635 A FR776635 A FR 776635A
Authority
FR
France
Prior art keywords
tracking devices
tracking
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.)
Compagnie Francaise Thomson Houston SA
Original Assignee
Compagnie Francaise Thomson Houston 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 Compagnie Francaise Thomson Houston SA filed Critical Compagnie Francaise Thomson Houston SA
Application granted granted Critical
Publication of FR776635A publication Critical patent/FR776635A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/045—Indication of the tuning band, the bandwidth, tone control, the channel number, the frequency, or the like
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
    • H03J1/00—Details of adjusting, driving, indicating, or mechanical control arrangements for resonant circuits in general
    • H03J1/02—Indicating arrangements
    • H03J1/04—Indicating arrangements with optical indicating means
    • H03J1/044—Illumination of the tuning dial; On and off switching of the illumination; Circuits related with illumination
FR776635D 1933-10-18 1933-10-18 Improvements to tracking devices Expired FR776635A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR776635T 1933-10-18
FR45514T 1934-05-12

Publications (1)

Publication Number Publication Date
FR776635A true FR776635A (en) 1935-01-30

Family

ID=62295930

Family Applications (2)

Application Number Title Priority Date Filing Date
FR776635D Expired FR776635A (en) 1933-10-18 1933-10-18 Improvements to tracking devices
FR45514D Expired FR45514E (en) 1933-10-18 1934-05-12 Improvements to tracking devices

Family Applications After (1)

Application Number Title Priority Date Filing Date
FR45514D Expired FR45514E (en) 1933-10-18 1934-05-12 Improvements to tracking devices

Country Status (1)

Country Link
FR (2) FR776635A (en)

Also Published As

Publication number Publication date
FR45514E (en) 1935-09-12

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