New Jersey. Department of Labor and Industry. Bureau of Engineering and Safety2013-03-042013-03-041947-11-01http://hdl.handle.net/10929/25965"November 1, 1947, Reprint July 1, 1949"en-USNo known copyright. The organization that has made the Item available reasonably believes that the Item is not restricted by copyright or related rights, but a conclusive determination could not be made. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.Industrial safety - Law and legislation - New Jersey.State Publication