Visual testing articles made of cardboard, namely, eye charts, eye cards, eye visual contrast charts, symbol books, namely books with pictures therein bearing visually observable items, 3-dimensional symbols, visual testing devices, namely, cone adaptation, test items featuring colored 3-dimensional chips, fixation sticks and paddler, orientation mailboxes featuring 3-dimensions with a slot for insertion of a letter, campimeter featuring 3-dimensional articles for testing peripheral vision

'3':27,40,50,62 'adapt':35 'articl':3,64 'bear':23 'book':17,19 'campimet':60 'card':11 'cardboard':6 'chart':9,15 'chip':42 'color':39 'cone':34 'contrast':14 'devic':32 'dimens':51 'dimension':28,41,63 'eye':8,10,12 'featur':38,49,61 'fixat':43 'insert':56 'item':26,37 'letter':59 'made':4 'mailbox':48 'name':7,18,33 'observ':25 'orient':47 'paddler':46 'peripher':67 'pictur':21 'slot':54 'stick':44 'symbol':16,29 'test':2,31,36,66 'therein':22 'vision':68 'visual':1,13,24,30

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