metal sheets that may be used as writing surfaces in the nature of chalkboards and markerboards

'chalkboard':14 'markerboard':16 'may':4 'metal':1 'natur':12 'sheet':2 'surfac':9 'use':6 'write':8

chalkboards, blackboards and markerboards; felt and felt-tipped pens and markers

'blackboard':2 'chalkboard':1 'felt':5,8 'felt-tip':7 'marker':12 'markerboard':4 'pen':10 'tip':9

non-metallic building materials, namely, wall panels having a writing surface

'build':4 'materi':5 'metal':3 'name':6 'non':2 'non-metal':1 'panel':8 'surfac':12 'wall':7 'write':11

P3

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