Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › System for keeping account of predetermined homogenous units

System for keeping account of predetermined homogenous units

US Patent 4204113 · Granted May 20, 1980

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Method and device for protecting software delivered to a user by a supplier1987
Process and apparatus for authenticating the signature of a signed message1987
Method for certifying the origin of at least one item of information stored in t1985
Process and system for transmission of signed messages1984
Apparatus for and method of recycling recording carriers, such as credit cards, 1984
System for keeping account of predetermined homogeneous units1983
System for keeping account of predetermined homogeneous units1983
Method of and apparatus for inscribing a control character in a memory1982
Method of and apparatus for testing a memory matrix control character1982
Data processing system which protects the secrecy of confidential data1981
System for keeping account of predetermined homogeneous units1981
System for keeping account of predetermined homogeneous units1981