General Features
- Plurality of manuals (Class 84/424)
- Auxiliary (Class 84/425)
- Plurality of touch plates (Class 84/427)
- Curved front (Class 84/429)
- Key bottoms (Class 84/430)
- Key frames adjustable (Class 84/432)
- Keys (Class 84/433)
- Manufacturing processes (Class 84/438)
- Touch regulators (Class 84/439)
- Key holders (Class 84/441)
- Uniform (Class 84/423A)
- Button type (Class 84/423B)
There are no patents to show for this class.