CA1267533CCA532647ACA532647ACA1267533CCA 1267533 CCA1267533 CCA 1267533CCA 532647 ACA532647 ACA 532647ACA 532647 ACA532647 ACA 532647ACA 1267533 CCA1267533 CCA 1267533C
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CA
Canada
Prior art keywords
back plate
edge
poster
leg
shaped member
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Priority to CA532647ApriorityCriticalpatent/CA1267533C/fr
Application grantedgrantedCritical
Publication of CA1267533ApublicationCriticalpatent/CA1267533A/fr
Publication of CA1267533CpublicationCriticalpatent/CA1267533C/fr