John B. Dobie

1915

• A vertical-flue haydryer
• Barn mow haydrying in California
• Hay cube storage and feeding
• Liquid manure pumps and equipment
• Materials handling for livestock feeding
• The electric hay hoist
• Tramp iron
• Airborne dust in agricultural environments
• Barn Mow Haydrying for Better Quality Hay; C454
• Electrical heating of water for livestock
• Poultry lighting for egg production
• Wartime iron wire poultry brooders