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
GB7345/25A
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.)
ANDREAS BENDIX CHRISTIAN THOMS
Original Assignee
ANDREAS BENDIX CHRISTIAN THOMS
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Filing date
Publication date
Application filed by ANDREAS BENDIX CHRISTIAN THOMSfiledCriticalANDREAS BENDIX CHRISTIAN THOMS
Publication of GB231172ApublicationCriticalpatent/GB231172A/en
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F13/00—Illuminated signs; Luminous advertising
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Engineering & Computer Science
(AREA)
Theoretical Computer Science
(AREA)
Illuminated Signs And Luminous Advertising
(AREA)
Abstract
231,172. Thomsen, A. B. C. March 18, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Illumination, changing advertisements by controlling. - In sign-boards &c. the colour of the light emitted by a lamp bulb is varied by providing behind the lamp one or more lamps having bulbs of a different colour. The front of the visible lamp 1 is frosted, and the rear lamp or lamps 2 may be enclosed in a short casing 3. One lamp only is lit at a time.
GB7345/25A1924-03-181925-03-18Lamp device for illuminated advertising sign-boards or the like
ExpiredGB231172A
(en)