TRANSIT TICKET HAVING FARE CODING MEANS FOR AUTOMATIC FARE COLLECTION SYSTEMS
United States Patent 3531627
US Patent References:
Control record for accounting machines
- - 2254931
Security system
- - 3015087
Magnetic core memory making process
- - 3068554
Magnetic-core memory construction
- - 3139610
Security system
- - 3154761
Control record for accounting machines
- - 2254931
Security system
- - 3015087
Magnetic core memory making process
- - 3068554
Magnetic-core memory construction
- - 3139610
Security system
- - 3154761
Inventors:
Ham, Donald M.
Publication Date:
09/29/1970
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Export Citation:
Assignee:
GEN ELECTRIC
Primary Class:
Other Classes:
235/493, 101/369, 340/5.660
International Classes:
G06K19/12; G06K19/06; H04Q3/02
US Patent References:
| 3312372 | Secret coded card system | |||
| 2547838 | Record bearing medium and methods of preparation | |||
| 2634911 | Record card with selective conductive marks | |||
| 2704634 | ||||
| 3097347 | Subscriber controlled apparatus | |||
| 3100834 | Magnetic data processing | |||
| 3200386 | Digital phase-displacement reduction combination | |||
| 3308010 | Cryogenic and thermal seal for electrical members | |||
| 3325632 | Data storage techniques | |||
| 3373265 | Information storage and retrieval process and coded record card therefor |