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Class Information
Number: 40/447
Name: Card, picture, or sign exhibiting > Changing exhibitor > Alphanumeric (monogram) device
Description: Exhibitor wherein letters or numbers are selectively presented by activating one or more of a plurality of elements, such elements being arranged in a matrix which will allow, upon elemental selective activation, the presentation of (1) any number, (2) any letter, or (3) any number or letter.










Sub-classes under this class:

Class Number Class Name Patents
40/450 Bar segment, e.g., figure eight 56
40/452 Illuminated 102
40/448 Liquid crystal 65
40/449 Magnetic 120


Patents under this class:
1 2

Patent Number Title Of Patent Date Issued
8446293 Traffic sign system that uses the national transportation communications for intelligent systems protocol May. 21, 2013
8245425 Setting apparatus for displacing push elements in a sign display module Aug. 21, 2012
7234256 Setting device Jun. 26, 2007
7018129 Enhanced guardrail Mar. 28, 2006
6944984 Sign representation device Sep. 20, 2005
6870655 Rearview mirror with display Mar. 22, 2005
6675514 Message center enclosure and method for making same Jan. 13, 2004
6568109 Changeable address display May. 27, 2003
6570492 Electronic retail price tag system May. 27, 2003
6557279 Variable image-displaying member May. 6, 2003
6382126 Reflective and adhesive patch May. 7, 2002
6282824 Display device Sep. 4, 2001
6243690 Electronic price label including a plurality of separately addressable displays Jun. 5, 2001
6163994 Display device and array Dec. 26, 2000
6111759 Display with an array of electromagnetically operable elements Aug. 29, 2000
6088008 Apparatus and method for remotely controlled variable message display Jul. 11, 2000
6009648 Display device and array Jan. 4, 2000
5995077 Portable, wearable read/write data device Nov. 30, 1999
5933329 Board for mounting display element Aug. 3, 1999
5923313 Scanned flip-disk sign improvements Jul. 13, 1999
5809675 Board for mounting display element Sep. 22, 1998
5793343 Display apparatus for signage Aug. 11, 1998
5751269 Scanned flip-disk sign improvements May. 12, 1998
5697174 Matrix-array display Dec. 16, 1997
RE35357 Display element with notched disk Oct. 22, 1996
5493805 Memory chip holder and method of using same Feb. 27, 1996
5412891 Changeable sign May. 9, 1995
5392546 Manually changeable displays Feb. 28, 1995
5315775 Digital sign May. 31, 1994
5277587 Learning toy Jan. 11, 1994
5184116 Back-lightable diffusive display sign Feb. 2, 1993
5177890 Panel fence Jan. 12, 1993
5124845 Interior rearvision mirror Jun. 23, 1992
5050325 Display indicator and reed switch Sep. 24, 1991
5022171 Matrix display assembly having multiple point lighting Jun. 11, 1991
5021773 Fibre optic display device Jun. 4, 1991
5016002 Matrix display May. 14, 1991
5012229 User wearable personal/medical information device Apr. 30, 1991
4986014 Matrix-type advertising device Jan. 22, 1991
4974353 Matrix display assembly having multiple point lighting Dec. 4, 1990
4833806 Display cell element for point matrix display panels May. 30, 1989
4805329 Self-powered computerized advertisement board Feb. 21, 1989
4796368 Changeable dot display assembly Jan. 10, 1989
4791744 Adjustable price display Dec. 20, 1988
4783081 Playing or games board on which several games can be played Nov. 8, 1988
4777747 Numerical price designating apparatus and method Oct. 18, 1988
4761905 Scanned electromechanical display Aug. 9, 1988
4733487 Display unit Mar. 29, 1988
4729184 Changeable digital display device Mar. 8, 1988
4724629 Illuminated display board Feb. 16, 1988

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