Education and demonstration – Means for demonstrating apparatus – product – or surface... – Chalkboard or equivalent means having easily erasable surface
Patent
1997-02-12
1998-07-07
Smith, Jeffrey A.
Education and demonstration
Means for demonstrating apparatus, product, or surface...
Chalkboard or equivalent means having easily erasable surface
40606, 434430, B43L 100
Patent
active
057759197
ABSTRACT:
A bulletin/write board includes opaque first member intended to be mounted on a wall or positioned upstanding on a horizontal surface. At least one overlay member is pivotally secured to said first member along juxtaposed edges of said members by a spirally wound hinge to permit the overlay member to be pivoted over or away from said first member. Said members are generally rigid and have smooth surfaces which permit removable adhesive placement of note items or wipe-off writings thereon. Fasteners are provided to permit selective fastening of said overlay member to said first member when the overlay member is positioned over said first member.
REFERENCES:
patent: 3502295 (1970-03-01), Sganga
patent: 4098009 (1978-07-01), Flynn
patent: 4213520 (1980-07-01), Sarna et al.
patent: 4906025 (1990-03-01), Schreindl
patent: 5131849 (1992-07-01), Perrero
patent: 5145141 (1992-09-01), Hunter
patent: 5441228 (1995-08-01), Geborek
patent: 5595009 (1997-01-01), Rummer
Right Message, L.L.C.
Smith Jeffrey A.
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