×

Type piano

  • US 8,426,713 B1
  • Filed: 09/27/2011
  • Issued: 04/23/2013
  • Est. Priority Date: 09/27/2011
  • Status: Expired due to Fees
First Claim
Patent Images

1. A device comprising:

  • a housing including a keyboard portion and a speaker portion, the keyboard portion including a top key row, a middle key row and a bottom key row immediately adjacent to each other, the top row including five keys arranged as five accidental notes within one octave and alphabetically labeled according to an abbreviated keyboard layout, the middle row including eight keys arranged as eight natural notes within the one octave and alphabetically labeled according to the layout, the bottom row including a space bar key between modifier keys, the speaker portion including a speaker operative to emit note sounds.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×