Having Indication Or Alarm Patents (Class 340/6.1)
- Two-way paging (Class 340/7.21)
- Transmitting configuration (Class 340/7.24)
- Paging terminal (i.e., element prior to the transmitter) (Class 340/7.28)
- Power control or battery saving (Class 340/7.32)
- Programming the receiver (Class 340/7.39)
- Frequency scanning for address (Class 340/7.42)
- Particular message and address format (e.g., POCSAG, FLEX, etc.) (Class 340/7.43)
- Addressing format (Class 340/7.45)
- Distress signal (Class 340/7.5)
- Message presentation (Class 340/7.51)
- Alert (Class 340/7.58)
- Housing detail (Class 340/7.63)