System With Receiver Selection (455/31.1) Patents (Class 340/FOR311)

Foreign Patent Art Collections

Control of selectively responsive paging arrangement over telephone line (379/for 102) (Class 340/FOR312)
Receiver scans for address signal (455/32.1) (Class 340/FOR321)
Coded sequence (455/38.1) (Class 340/FOR381)

There are no patents to show for this class.