Hard hat inventor honoured during National 麻豆传媒高清ion Appreciation Week
NORTH CANTON, OHIO – The third week of September is National 麻豆传媒高清ion Appreciation Week in the United States. In honour of the week, the National Inventors Hall of Fame is celebrating Edward W. Bullard, inventor of the hard hat. Bullard鈥檚 hard hat was the first commercially available industrial head protection device. The lightweight, non-conducting hard … Continue reading Hard hat inventor honoured during National 麻豆传媒高清ion Appreciation Week
