measuring tools, namely, a variety of levels which may be laser-assisted and may combine additional functions of protractor, micrometer, camera or tripod mount, to assure alignment in building construction [ ; and sound directional aligners for adjusting audio systems ]

'addit':17 'adjust':37 'align':28,35 'assist':13 'assur':27 'audio':38 'build':30 'camera':22 'combin':16 'construct':31 'direct':34 'function':18 'laser':12 'laser-assist':11 'level':7 'may':9,15 'measur':1 'micromet':21 'mount':25 'name':3 'protractor':20 'sound':33 'system':39 'tool':2 'tripod':24 'varieti':5

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