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.)
G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
G09F9/377—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the positions of the elements being controlled by pneumatic means
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
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Engineering & Computer Science
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Theoretical Computer Science
(AREA)
Refuge Islands, Traffic Blockers, Or Guard Fence
(AREA)