|  | F |
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING

ENGINES AND PUMPS

|  | F03 |
MACHINES OR ENGINES FOR LIQUIDS (for liquids and elastic fluids Fulltext... Hierarchy... Expanded...F01; positive-displacement machines for liquids Fulltext... Hierarchy... Expanded...F04); WIND, SPRING, WEIGHT, OR MISCELLANEOUS MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR

|  | F03H |
PRODUCING A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR (from combustion products Fulltext... Hierarchy... Expanded...F02K)

|  | F03H 1/00 |
Using plasma to produce a reactive propulsive thrust (generating plasma Fulltext... Hierarchy... Expanded...H05H 1/00)

|  | F03H 3/00 |
Using photons to produce a reactive propulsive thrust

|  | F03H 5/00 |
Producing a reactive propulsive thrust, not otherwise provided for