Steam, hot-water and gas distribution systems : Repairs and utilities - USA Voorschrift, Technical Manual, 5-652 Grounds maintenance, dust and erosion control : Repairs and utilities - USA Voorschrift, Technical Manual, 5-630 Inspections and Preventive Maintenance Services for Buildings and Structures, Grouds, Roads and Pavements, Railroads - USA Voorschrift, Technical Manual, 5-610 Inspections and preventive maintenance services : Sewage treatment plants and sewer systems at fixed installations - USA Voorschrift, Technical Manual, 5-666 war department technical manual Inspections and preventive maintenance services for coal-handling equipment war department technical manual Inspection and preventive maintenance services for fire-protection equipment and appliances war department technical manual Post engineer shops war department technical manual Lesson plans on practical firemanship war : phase two / (Office of War Mobilization and Reconversion) Thermographs ML-77 and ML-277 - USA Voorschrift, Technical Manual, 11-426 Meteorological balloons - USA Voorschrift, Technical Manual, 11-2405 Pilot balloon tables (30-gram) - USA Voorschrift, Technical Manual, 11-2410