72374 ⎘
Dropping, ejecting, releasing, or receiving articles, liquids, or the like, in flight; Dropping or releasing powdered, liquid, or gaseous matter, e.g. for fire-fighting for sky-writing
Aircraft skywriting method, apparatus, and system
#2Aircraft aerosol dispensing method, apparatus, and system
#3System for creating aerial designs and messages
#4Smoke generation device for aircraft and aircraft fitted with such a device