F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
 F01 - 
F04
Subsection index
MACHINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
ENGINEERING IN GENERAL
 F17
STORING OR DISTRIBUTING GASES OR LIQUIDS (water supply E03B)
 F17B
GAS-HOLDERS OF VARIABLE CAPACITY (self-acting gas cut-off devices A47J 27/56, G05D; flame traps A62C 4/00; gas mixers B01F, F16K 11/00, G05D 11/00; construction or assembling of bulk storage containers employing civil-engineering techniques E04H 7/00; gas compressors F04; valves F16K; damping pulsations in valves or pipes F16K, F16L; pipes F16L; stopping devices for gas mains F16L 55/10; vessels adapted for storing compressed, liquefied, or solidified gases F17C; gas distribution systems F17D 1/00; detecting leakage F17D 5/00, G01M; supervising or alarm devices F17D 5/00, G08B; control of combustion in burners F23N; gas flow or pressure regulators G05D)
P:0 F17B 1/00
Gas-holders of variable capacity (large containers in general B65D 88/00; storing fluids in natural or artificial cavities or chambers in the earth B65G 5/00)