TY - JOUR AB - As several kinds ot compressed gas are now used for various purposes in connection with civil aviation, precautions should be taken to prevent one kind being mistaken for another. VL - 9 IS - 7 SN - 0002-2667 DO - 10.1108/eb030203 UR - https://doi.org/10.1108/eb030203 PY - 1937 Y1 - 1937/01/01 TI - Air Ministry Official Notices T2 - Aircraft Engineering and Aerospace Technology PB - MCB UP Ltd SP - 195 EP - 195 Y2 - 2024/05/13 ER -