TY - JOUR AB - These abstracts of British Patent Specificat ions are condensed, by permission, from the official specifications. Copies of the full specifications are obtainable from the Patent Office, 25 Southampton Buildings, W.C.2, price 3s. 6d. each. VL - 33 IS - 12 SN - 0002-2667 DO - 10.1108/eb033503 UR - https://doi.org/10.1108/eb033503 PY - 1961 Y1 - 1961/01/01 TI - British Patent Abridgments T2 - Aircraft Engineering and Aerospace Technology PB - MCB UP Ltd SP - 374 EP - 374 Y2 - 2024/04/25 ER -