David A. Schleppenbach

3 Patents

• US125484672026

  Electro Magnetic Refreshable Braille Reader

  ENHANCED VISIONS SYSTEMS, Inc.

  0 cites
• US120801822024

  Capture Plate Assembly for Braille Display

  0 cites
• US116459482023

  Capture Plate Assembly for Braille Display

  Tactile Solutions, Inc.

  0 cites