TY - JOUR AB - These details and drawings of patents granted in the United States are taken, by permission of the Department of Commerce, from the ‘Official Gazette of the United States Patent Office’. Printed copies of the full specifications can be obtained, price 10 cents each, from the Commissioner of Patents, Washington, D.C., U.S.A. They are usually available for inspection at the British Patent Office, Southampton Buildings, Chancery Lane, London, W.C.2. VL - 22 IS - 6 SN - 0002-2667 DO - 10.1108/eb031916 UR - https://doi.org/10.1108/eb031916 PY - 1950 Y1 - 1950/01/01 TI - U.S. Patent Specifications T2 - Aircraft Engineering and Aerospace Technology PB - MCB UP Ltd SP - 184 EP - 184 Y2 - 2024/04/18 ER -