Construction hard hats were first used on what project in 1933 ? The answer is
Question: Construction hard hats were first used on what project in 1933
Answer: Hoover Dam
Question: Construction hard hats were first used on what project in 1933
Answer: Hoover Dam
USA - United States of America Canada United Kingdom Australia New Zealand South America Brazil Portugal Netherland South Africa Ethiopia Zambia Singapore Malaysia India China UAE - Saudi Arabia Qatar Oman Kuwait Bahrain Dubai Israil England Scotland Norway Ireland Denmark France Spain Poland and many more....