CPC Subgroup
F02N 7/12 the engines being of rotary type, e.g. turbines (F02N7/14 takes precedence)
Full Title
Starting apparatus having fluid-driven auxiliary engines or apparatus > characterised by using auxiliary engines or apparatus of combustion type (by using explosive cartridges F02N13/00) > the engines being of rotary type, e.g. turbines (F02N7/14 takes precedence)