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.
A bone scan can also be used to determine bone density and the bone-thinning condition of osteoporosis. What the test does not show: The bone scan does not show the details of the bones or soft tissue. It only shows how much the bone around a specific area is reacting to the problem. How the test is done: The bone scan works by injecting a radioactive chemical, sometimes called a tracer, into the bloodstream through an intravenous line (IV).