Card – picture – or sign exhibiting – Signs – Interchangeable
Patent
1990-03-22
1991-11-19
Smith, Gary L.
Card, picture, or sign exhibiting
Signs
Interchangeable
40621, 40596, 294 655, 294 191, G09F 702, A47F 1306
Patent
active
050655370
ABSTRACT:
A changeable letter sign system including a plurality of panels, each bearing a letter, character or other suitable indicia and combinable on an overhead readerboard to display a message thereon, each of the panels having magnetically attractive material carried on the normally front face thereof, in complete contiguous arrangement with the peripheral inner and outer edges of the indicia on the panel, and including a tool having a magnet presenting a pair of feet for engagement with said magnetically attractive material to permit holding of the panels for placement on or removal from suitable retaining means on the wall of the readerboard.
REFERENCES:
patent: 767060 (1904-08-01), Hotchner
patent: 1677919 (1928-07-01), Hansen
patent: 2493108 (1950-01-01), Casey
patent: 2584253 (1952-02-01), Braun
patent: 2616741 (1952-11-01), Ziese
patent: 2895245 (1959-07-01), Spangler
patent: 2923080 (1960-02-01), Spangler
patent: 2935936 (1960-05-01), Woodring et al.
patent: 3228133 (1966-01-01), Bearmann
patent: 3254436 (1966-06-01), Bank
patent: 3444638 (1969-05-01), Jahn
patent: 3477159 (1969-11-01), Bank
patent: 3531884 (1970-10-01), Adler
patent: 3673720 (1972-07-01), Thornton
patent: 3675355 (1972-07-01), Shanok et al.
patent: 3742633 (1973-07-01), Palm
patent: 4140405 (1979-02-01), Shapiro et al.
patent: 4207697 (1980-06-01), Murphy
patent: 4437362 (1984-03-01), Hurst
patent: 4450640 (1984-05-01), Shapiro et al.
patent: 4575143 (1986-03-01), Nast
patent: 4813729 (1989-03-01), Speckhart
Americraft Corporation
Saether F.
Smith Gary L.
LandOfFree
Changeable letter sign system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Changeable letter sign system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Changeable letter sign system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1361379