What is the answer to the following question Construction hard hats were first used on what project in 1933

Answer to Construction hard hats were first used on what project in 1933

 

 

 

Question: Construction hard hats were first used on what project in 1933?

Answer : Hoover Dam

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Quiz answer to the question Construction hard hats were first used on what project in 1933

 

Construction hard hats were first used on what project in 1933

 

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