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.
Bone marrow biopsy and bone marrow aspiration are procedures to collect and examine bone marrow â the spongy tissue inside some of your larger bones. Bone marrow biopsy and aspiration can show whether your bone marrow is healthy and making normal amounts of blood cells.Doctors use these procedures to diagnose and monitor blood and marrow diseases, including some cancers, as well as fevers of unknown origin.Bone marrow has a fluid portion and a more solid portion.n bone marrow aspiration, a needle is used to withdraw a sample of the fluid portion. Bone marrow biopsy and bone marrow aspiration are often done at the same time. Together, these procedures may be called a bone marrow exam. 1  Why it's done.