"Silica vs. Phoscaloid: a story of phoscaloid's development by Old Man Experience" (1941); water and sewage treatment using intermitting (circulating) aerating system and chemical clarification and purification without filtration ; water treatment plant services ; engineering services for boiler room and furnace construction, boiler and fuel testing, smoke elimination, and methods of gas, oil and coal consumptions ;
Includes:
Trade catalog
Black and white images
Physical description:
5 pieces; 1 box
Language:
English
Type of material:
Trade catalogs
Trade literature
Place:
Pittsburgh, Pennsylvania, United States
Date:
1900s
Topic (Romaine term):
Industrial equipment or mechanical machinery (including supplies and components) Search this
Business services (advertising; marketing; organizational management; etc.) Search this