GB449942A - Improvements in and relating to optical indicating devices - Google Patents

Improvements in and relating to optical indicating devices

Info

Publication number
GB449942A
GB449942A GB22729/35A GB2272935A GB449942A GB 449942 A GB449942 A GB 449942A GB 22729/35 A GB22729/35 A GB 22729/35A GB 2272935 A GB2272935 A GB 2272935A GB 449942 A GB449942 A GB 449942A
Authority
GB
United Kingdom
Prior art keywords
screen
aug
relating
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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
GB22729/35A
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.)
IDEAL WERKE AG
Original Assignee
IDEAL WERKE AG
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 IDEAL WERKE AG filed Critical IDEAL WERKE AG
Publication of GB449942A publication Critical patent/GB449942A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/025—Associated optical elements
    • 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

Landscapes

  • Road Signs Or Road Markings (AREA)
  • Illuminated Signs And Luminous Advertising (AREA)
GB22729/35A 1934-08-16 1935-08-12 Improvements in and relating to optical indicating devices Expired GB449942A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE449942X 1934-08-16

Publications (1)

Publication Number Publication Date
GB449942A true GB449942A (en) 1936-07-07

Family

ID=6538334

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22729/35A Expired GB449942A (en) 1934-08-16 1935-08-12 Improvements in and relating to optical indicating devices

Country Status (3)

Country Link
BE (1) BE410877A (fr)
FR (1) FR792991A (fr)
GB (1) GB449942A (fr)

Also Published As

Publication number Publication date
FR792991A (fr) 1936-01-14
BE410877A (fr)

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