Message board

Details Message board Message board

1986-09-18

1988-04-19

Mancene, Gene

Card, picture, or sign exhibiting

Signs

Interchangeable

40 10R, 40622, G09F 702

Patent

active

047380438

ABSTRACT:
A message board has a back plate, strips bearing alphanumeric characters and being secured to the forward surface of the back plate, and a see-through face plate attachable to the back plate and communicating with character strips in such a manner as to prevent displacement. The back plate is preferably provided with locating pins projecting from a forward surface thereof to receive the character being strips thereon prior to attachment of the face plate. The strips have apertures for receiving the pins therein. Alternatively, magnetic strips and ferrous elements are used for magnetically securing the strips to the back plate.

REFERENCES:
patent: 351862 (1886-11-01), Grosjean
patent: 625681 (1899-05-01), Johnson et al.
patent: 705275 (1902-07-01), Mosher et al.
patent: 2039248 (1936-04-01), Huppert
patent: 2540718 (1951-02-01), Duskin
patent: 3296724 (1967-01-01), Deuchar
patent: 3371439 (1968-03-01), Smith et al.
patent: 3590507 (1971-07-01), Wren
patent: 3782015 (1974-01-01), Esry
patent: 4531320 (1985-07-01), James

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