For Typing On Card In Card Holder Patents (Class 400/521)
- And actuated in response to platen rotation (Class 400/526)
- With platen surface modified for card (Class 400/527)
- Holder attached via detachable arms at ends of platen (Class 400/528)
- Holder attached via pins on holder or via adhesive attachment (Class 400/529)
- Holder attached via element (e.g., band) gripping platen periphery (Class 400/530)