Implements Patents (Class 15/104.001)
- Including projectable and retractable penpoint (Class 15/436)
- With means supporting or stabilizing implement in use (Class 15/437)
- Including manually adjustable gripping or releasing means for penpoint (Class 15/438)
- Penholder shaped to receive or engage hand or finger (Class 15/443)
- Penholder includes specific penpoint retaining means (Class 15/444)
- Specific penpoint (Class 15/445)
- Special work (Class 15/160)
- Bridles (Class 15/168)
- Heads and casings (Class 15/171)
- Housings (Class 15/184)
- Individual-bristle mount (Class 15/186)
- Stitched and wire bound (Class 15/189)
- Tuft fasteners (Class 15/190)
- Tuft socket (Class 15/191.1)
- Twisted bristle holder (Class 15/206)
- Wire wound (Class 15/207)
- Bristle configuration or composition (Class 15/207.2)