Bone marrow contains tissue that produces lymphocytes. B-lymphocytes (B-cells) mature in the bone marrow. T-lymphocytes (T-cells) mature in the thymus gland. Other blood cells such as monocytes and leukocytes are produced in the bone marrow.one marrow contains tissue that produces lymphocytes. B-lymphocytes (B-cells) mature in the bone marrow. T-lymphocytes (T-cells) mature in the thymus gland. Other blood cells such as monocytes and leukocytes are produced in the bone marrow.
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Customer Number Data Change form [PDF] and fax it to the Electronic Business Center at 571-273-0177. * This may be useful to attorneys changing firms or organizations that are reorganizing the management of a group of patents. 1  Associate Existing Patent Applications to a Customer Number.