GB489140A - Improvements in and relating to warning systems for moving objects particularly for use in the dark in the event of air attacks - Google Patents
Improvements in and relating to warning systems for moving objects particularly for use in the dark in the event of air attacksInfo
- Publication number
- GB489140A GB489140A GB26874/37A GB2687437A GB489140A GB 489140 A GB489140 A GB 489140A GB 26874/37 A GB26874/37 A GB 26874/37A GB 2687437 A GB2687437 A GB 2687437A GB 489140 A GB489140 A GB 489140A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dark
- relating
- event
- moving objects
- warning systems
- 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
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/16—Signs formed of or incorporating reflecting elements or surfaces, e.g. warning signs having triangular or other geometrical shape
Landscapes
- Physics & Mathematics (AREA)
- Geometry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Luminescent Compositions (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
489,140. Railway signals. DEGEA AKT.-GES. (AUERGES.). Oct. 4, 1937, No. 26874. Convention date, Nov. 3, 1936. [Class 105] [Also in Groups XXXVIII and XX] Signals comprise fluorescent surfaces which are made luminous by a source of ultra-violet light carried by the train. The invention is for use in time of war.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE489140X | 1936-11-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB489140A true GB489140A (en) | 1938-07-20 |
Family
ID=6543911
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB26874/37A Expired GB489140A (en) | 1936-11-03 | 1937-10-04 | Improvements in and relating to warning systems for moving objects particularly for use in the dark in the event of air attacks |
Country Status (3)
Country | Link |
---|---|
CH (1) | CH198573A (en) |
FR (1) | FR828283A (en) |
GB (1) | GB489140A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE959889C (en) * | 1953-07-01 | 1957-03-14 | Fluorescent Electric Mfg Compa | Arrangement for making a lettering visible on a trailer vehicle |
-
1937
- 1937-10-04 GB GB26874/37A patent/GB489140A/en not_active Expired
- 1937-10-15 CH CH198573D patent/CH198573A/en unknown
- 1937-10-25 FR FR828283D patent/FR828283A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR828283A (en) | 1938-05-13 |
CH198573A (en) | 1938-06-30 |
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