00877cam a22002531 4500 l 24000189 DLC 20260227111529.0 830523s1924 dcua 000 0 eng l 24000189 (OCoLC)29099889 DLC MnU DLC premarc HD8051 .A62 no. 364 National Bureau of Casualty Underwriters. Safety code for mechanical power-transmission apparatus. Washington, Govt. Print. Off., 1924. vi, 30 p. tables, diagrs. 23 cm. Machinery Safety appliances. American Standards Association United States. Bureau of Labor Statistics Bulletin (United States. Bureau of Labor Statistics) ; 364. United States. Bureau of Labor Statistics. Safety code series. 35752 35752