FR645994A - Tracking device making it possible to find the exact position of a dial in relation to a fixed marker - Google Patents

Tracking device making it possible to find the exact position of a dial in relation to a fixed marker

Info

Publication number
FR645994A
FR645994A FR645994DA FR645994A FR 645994 A FR645994 A FR 645994A FR 645994D A FR645994D A FR 645994DA FR 645994 A FR645994 A FR 645994A
Authority
FR
France
Prior art keywords
dial
find
relation
tracking device
exact position
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)
Inventor
Jules Rousseaux
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 filed Critical
Application granted granted Critical
Publication of FR645994A publication Critical patent/FR645994A/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
    • H03J1/042—Means insuring a precise reading of the dial, e.g. special scale, local illumination possibly temporary, luminous point moving with the pointer
FR645994D 1927-12-21 1927-12-21 Tracking device making it possible to find the exact position of a dial in relation to a fixed marker Expired FR645994A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR645994T 1927-12-21

Publications (1)

Publication Number Publication Date
FR645994A true FR645994A (en) 1928-11-06

Family

ID=9001097

Family Applications (1)

Application Number Title Priority Date Filing Date
FR645994D Expired FR645994A (en) 1927-12-21 1927-12-21 Tracking device making it possible to find the exact position of a dial in relation to a fixed marker

Country Status (1)

Country Link
FR (1) FR645994A (en)

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