CASEMATE ELECTRICIAN (579)

Operates and maintains electrical equipment of a mine casemate system for control of submarine mines used for protection of coastal waters and harbor areas.

CHIEF ARTILLERY MECHANIC (973)

Supervises, instructs, and coordinates enlisted mechanics in repairing, overhauling, rebuilding, and testing all artillery materiel, electrical and nonelectrical fire control instruments, shoulder weapons, machine guns and mortars in a field or mobile military shop.

CHIEF BALLOON RIGGER (615)

Supervises a group of balloon crewmen and riggers in preparing, inspecting, and maintaining a barrage balloon and balloon bed.

CONSTRUCTION EQUIPMENT MECHANIC (319)
Foreman, Construction Equipment Repair
Tractor Mechanic

Inspects, repairs, and tests construction equipment such as bulldozers, angle dozers, road scrapers, ditching machines, road graders, road rollers,cranes, power shovels, air compressors, tractors,trailers, fire pumpers, concrete mixers, and rock crushers in a mobile or fixed repair shop.

CONTROL SYSTEM REPAIRMAN, HEAVY ANTIAIRCRAFT ARTILLERY (919)

Disassembles and assembles for cleaning, repair, adjustment, inspection, and lubrication the component parts of antiaircraft artillery fire control data transmission systems used for weapons of caliber larger than 40-mm.

COOPER (270)

Builds and repairs barrels, buckets, casks, and kegs used in the packing, storing, or shipment of supplies and equipment.

COPPERSMITH (061)

Fabricates and repairs kettles, tanks, coils, roof gutters, tubing, fittings, and other similar objects in a military pipe and tin shop or other similar unit.

CRYSTAL GRINDER (150)

Grinds and calibrates crystals to be used in crystal controlled radio sets.  Processes crystal wafers to the required dimensions for a frequency, using small drill press with circular holder revolving between abrasive-coated iron plates.