GB1239742A - - Google Patents

Info

Publication number
GB1239742A
GB1239742A GB2994667A GB1239742DA GB1239742A GB 1239742 A GB1239742 A GB 1239742A GB 2994667 A GB2994667 A GB 2994667A GB 1239742D A GB1239742D A GB 1239742DA GB 1239742 A GB1239742 A GB 1239742A
Authority
GB
United Kingdom
Prior art keywords
choke
filaments
current
discharge
june
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
GB2994667A
Other languages
English (en)
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
Publication of GB1239742A publication Critical patent/GB1239742A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G07—CHECKING-DEVICES
    • G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00—Individual registration on entry or exit
    • G07C9/20—Individual registration on entry or exit involving the use of a pass
    • G07C9/22—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder
    • G07C9/24—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a handwritten signature
    • G07C9/243—Individual registration on entry or exit involving the use of a pass in combination with an identity check of the pass holder by means of a handwritten signature visually, e.g. by comparing in a viewer the written signature with a reference on the pass

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB2994667A 1967-06-28 1967-06-28 Expired GB1239742A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2994667 1967-06-28

Publications (1)

Publication Number Publication Date
GB1239742A true GB1239742A (fr) 1971-07-21

Family

ID=10299774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2994667A Expired GB1239742A (fr) 1967-06-28 1967-06-28

Country Status (1)

Country Link
GB (1) GB1239742A (fr)

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years