Internet-Only Manuals (IOMs) The Internet-only Manuals (IOMs) are a replica of the Agency's official record copy. They are CMS' program issuances, day-to-day operating instructions, policies, and procedures that are based on statutes, regulations, guidelines, models, and directives.
In 1905, Mogridge created the first crude protective head gear and was granted patent No. 780899 for a head protector.. This first attempt at a batting helmet was said to look like an inflatable boxing glove that wrapped around the hitters head..
In fact, before 1951, at least six major and minor league batters were killed when they took balls in the head. Why before 1951 you might ask? Because the following year the fiberglass batting helmet was introduced, something that would become a mandate for all teams by 1956.