Items

• William B. Haskins

  Shoulder Pad
• Booker T. Washington

  Valve-Gear for Steam-Engines
• Truman C. Tucker

  Combined Water Cooler and Support Therefor
• Portia L. Trenholm

  Design for an Earring Rack
• Portia L. Trenholm

  Design for an Earring Rack
• Powell Johnson

  Eye Protector
• Lonnie G. Johnson

  Flow Actuated Pulsator
• Lonnie G. Johnson

  Johnson tube, a thermodynamic heat pump
• Lonnie G. Johnson

  Squirt Gun
• Lonnie G. Johnson

  Automatic Sprinkler Control
• Lonnie G. Johnson

  Variable Resistance Type Sensor Controlled Switch
• Lonnie G. Johnson

  Digital Distance Measuring Instrument
• Walter A. Hill

  Movable Root Contact/Pressure Plate Assembly for Hydroponic System
• Walter A. Hill

  Movable Root Contact-Pressure Plate Assembly for Hydroponic System
• James Crocker

  Air Compressor
• George W. Carver

  Process of Producing Paints and Stains
• George W. Carver

  Paint and Stain and Process for Producing Same
• George W. Carver

  Cosmetics and Process of Producing
• Robert L. Campbell

  Valve Gear for Steam Engines
• Andrew J. Beard

  Automatic Car Coupling
• Andrew J. Beard

  Automatic Car Coupling
• Andrew J. Beard

  Automatic Car Coupling
• Andrew J. Beard

  Car Coupling
• Andrew J. Beard

  Rotary Engine
• Andrew J. Beard

  Rotary Engine