IMPROVED POSTERBOARD

Improved posterboard (10) is formed from a rectangular posterboard (10) having vertical side edges (12, 14) and horizontal top (16) and bottom edges (18). Guide marking (20) are applied to the posterboard (10). The guide markings (20) are visually perceptible at a writing distance away from the post...

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	SARAO, MARY, R, PITTS, BARBARA, R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADVERTISING CRYPTOGRAPHY DISPLAY DISPLAYING EDUCATION GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS LABELS OR NAME-PLATES PHYSICS SEALS SIGNS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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