Matches 201 - 208 out of 208 < 1 2 3 4 5
Match Document Document Title
3617638 SYSTEM FOR VERIFYING CREDIT CARD TRANSACTIONS  
A transaction recording and verifying system employs data transmitters at remote locations where the transactions are made. Upon activation, each transmitter dials the telephone number of the data...
3594503 DECODING CIRCUIT FOR TELEPHONE TRANSACTION SYSTEM  
A system is described for buying materials or services by transferring funds in a bank from the buyer's deposit account to the seller's account. The transfer of funds is accomplished by means of a...
3571799 DATA TRANSMISSION TERMINAL  
A credit authorization terminal for sensing identification data from a magnetic credit card and transmitting the same to a central processor over telephone lines. Also, a keyboard for transmitting...
3501744 POSTAGE METERING SYSTEM HAVING SIGNAL CONDITIONING MEANS  
3428948 POSTAGE METERING SYSTEM  
3307147 Telephone verification system  
0939245 Title is not available  
3821480 Title is not available  
Matches 201 - 208 out of 208 < 1 2 3 4 5