As a result, nearly all toasters made between 1915 and 1923, when the patent expired, are marked â Feb. 6, 1906â and âLMPâ (for âLicensed Under Marsh Patentsâ) in a diamond shape. Early toasters, like the D-12, only toasted one side of the bread at a time.
A bone marrow aspiration and biopsy removes a small amount of bone and a small amount of fluid and cells from inside the bone (bone marrow). It is often done to find the reason for many blood disorders and may be used to find out if cancer or infection has spread to the bone marrow.
The Craniotomy Procedure. A craniotomy is a surgery during which a piece of the skull (a bone flap) is removed in order to allow a surgeon access to the brain. After the surgery is performed, the bone flap is returned to its previous location, where it can heal and mend like any broken bone. In many cases, metal plates are used to hold the bone flap in place so that it can heal, much like a cast for a broken arm.