<titlePart> <text>SECTION F <emdash/> MECHANICAL ENGINEERING</text> </titlePart> <titlePart> <text>LIGHTING</text> </titlePart> <titlePart> <text>HEATING</text> </titlePart> <titlePart> <text>WEAPONS</text> </titlePart> <titlePart> <text>BLASTING</text> </titlePart>

<titlePart> <text>SECTION F <emdash/> MECHANICAL ENGINEERING</text> </titlePart> <titlePart> <text>LIGHTING</text> </titlePart> <titlePart> <text>HEATING</text> </titlePart> <titlePart> <text>WEAPONS</text> </titlePart> <titlePart> <text>BLASTING</text> </titlePart> MACHINES positive displacement rotary or oscillating piston liquid and elastic fluid or elastic fluid liquid only reciprocating piston or other liquid and elastic fluid or elastic fluid liquid only non-positive displacement liquid and elastic fluid or elastic fluid liquid only ENGINES positive displacement rotary or oscillating piston liquid and elastic fluid or elastic fluid liquid only reciprocating piston or other liquid and elastic fluid or elastic fluid liquid only non-positive displacement liquid and elastic fluid or elastic fluid liquid only PUMPS positive displacement rotary or oscillating piston reciprocating piston or other non-positive displacement <titlePart> <text>ENGINEERING IN GENERAL</text> </titlePart> <titlePart> <text>STORING OR DISTRIBUTING GASES OR LIQUIDS</text> <entryReference>water supply <sref ref="E03B"/></entryReference> </titlePart> <titlePart> <text>GAS-HOLDERS OF VARIABLE CAPACITY</text> <entryReference>self-acting gas cut-off devices <sref ref="A47J0027620000"/>, <sref ref="G05D"/></entryReference> <entryReference>flame traps <sref ref="A62C0004000000"/></entryReference> <entryReference>gas mixers <sref ref="B01F"/>, <sref ref="F16K0011000000"/>, <sref ref="G05D0011000000"/></entryReference> <entryReference>construction or assembling of bulk storage containers employing civil-engineering techniques <sref ref="E04H0007000000"/></entryReference> <entryReference>gas compressors <sref ref="F04"/></entryReference> <entryReference>valves <sref ref="F16K"/></entryReference> <entryReference>damping pulsations in valves or pipes <sref ref="F16K"/>, <sref ref="F16L"/></entryReference> <entryReference>pipes <sref ref="F16L"/></entryReference> <entryReference>stopping devices for gas mains <sref ref="F16L0055100000"/></entryReference> <entryReference>vessels adapted for storing compressed, liquefied, or solidified gases <sref ref="F17C"/></entryReference> <entryReference>gas distribution systems <sref ref="F17D0001040000"/></entryReference> <entryReference>detecting leakage <sref ref="F17D0005020000"/>, <sref ref="G01M"/></entryReference> <entryReference>supervising or alarm devices <sref ref="F17D0005020000"/>, <sref ref="G08B"/></entryReference> <entryReference>control of combustion in burners <sref ref="F23N"/></entryReference> <entryReference>gas flow or pressure regulators <sref ref="G05D"/></entryReference> </titlePart> <titlePart> <text>VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES</text> </titlePart> <titlePart> <text>FIXED-CAPACITY GAS-HOLDERS</text> </titlePart> <titlePart> <text>FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES</text> <entryReference>storing fluids in natural or artificial cavities or chambers in the earth <sref ref="B65G0005000000"/></entryReference> <entryReference>construction or assembling of bulk storage containers employing civil-engineering techniques <sref ref="E04H0007000000"/></entryReference> <entryReference>variable-capacity gas-holders <sref ref="F17B"/></entryReference> <entryReference>liquefaction or refrigeration machines, plants, or systems <sref ref="F25"/></entryReference> </titlePart> VESSELS UNDER PRESSURE; VESSELS NOT UNDER PRESSURE; DETAILS ; ; FILLING; DISCHARGING , ; , USE OF GAS-SOLVENTS OR GAS-ABSORBENTS <titlePart> <text>PIPE-LINE SYSTEMS</text> </titlePart> <titlePart> <text>PIPE-LINES</text> <entryReference>pumps or compressors <sref ref="F04"/></entryReference> <entryReference>fluid dynamics <sref ref="F15D"/></entryReference> <entryReference>valves or the like <sref ref="F16K"/></entryReference> <entryReference>pipes, laying pipes, supports, joints, branches, repairing, work on the entire line, accessories <sref ref="F16L"/></entryReference> <entryReference>steam traps or the like <sref ref="F16T"/></entryReference> <entryReference>fluid-pressure electric cables <sref ref="H01B0009060000"/></entryReference> </titlePart> In this subclass, the following expression is used with the meaning indicated: "pipe-line systems" means systems described in flow sheets as well as arrangements of co-operating elements, the elements per se being covered by the relevant subclasses.