Section R. 408.14203 - Definitions; A to CRule 4203.
(1) "Aisle" means a path of travel for vehicles and employees and which is not used for work and storage space.(2) "Board drop hammer" means a hammer equipped with boards attached to the ram which when propelled by motor driven friction rolls raises the ram and attachments.(3) "Cylinder head" means a cover attachment for the top of a steam cylinder.Mich. Admin. Code R. 408.14203