Safety flag warning systems for the roofing industry comprised primarily of safety flags and also containing flag posts, string or rope, and flag attachment devices, all designed to enhance safety when workers are located on a building's roof or other elevated work surface

'also':15 'attach':24 'build':37 'compris':9 'contain':16 'design':27 'devic':25 'elev':42 'enhanc':29 'flag':2,13,17,23 'industri':8 'locat':34 'post':18 'primarili':10 'roof':7,39 'rope':21 'safeti':1,12,30 'string':19 'surfac':44 'system':4 'warn':3 'work':43 'worker':32

FLAGSTAX

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