Section 1. The term "pressure" when used in this act means "gage pressure in pounds per square inch."
The term "employer" when used in this act includes individuals, copartnerships, associations, and corporations.
The term "pressure" when used in this act means "gage pressure in pounds per square inch."
Act 364 of 1917, § 1, under UNDERGROUND COMPRESSED AIR REGULATION LAW.
Act 364 of 1917, § 1