Card – picture – or sign exhibiting – Changing exhibitor – Sliding plate
Patent
1985-11-25
1987-04-07
Mancene, Gene
Card, picture, or sign exhibiting
Changing exhibitor
Sliding plate
40488, G09F 1100
Patent
active
046549900
ABSTRACT:
The sign envelope (12) is formed by parallel side panels (14 and 15), with openings (24 and 25) formed in each side panel. The openings are positioned at opposite ends of the envelope, and messages (28, 29) opposite in meaning are displayed by each side panel (14, 15) through the opening (24, 25) of the other panel. Sign plate (26) bears messages (30, 31) opposite in meaning on its opposite surfaces. Sign plate (26) is slidable through the envelope to register with one or the other of the openings (24, 25) of the envelope to display one of its messages which is compatible with the uncovered message at the opposite end of the envelope.
REFERENCES:
patent: 3748767 (1973-07-01), Giesecke
patent: 3769727 (1973-11-01), Kent, Jr.
patent: 4217713 (1980-08-01), Greenberger
patent: 4485576 (1984-12-01), Greenberger
Mancene Gene
Stone Cary E.
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