|
US4366481A
|
|
Vending machine acquisition system
|
|
US4306219A
|
|
Vending machine acquisition system
|
|
US4058194A
|
|
Multiple document recognition apparatus
|
|
US3792808A
|
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Stamp dispenser
|
|
US3710218A
|
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Induction motor speed control
|
|
US3680566A
|
|
Bulk coin dispenser
|
|
US3564591A
|
|
Register and electrical signal generator apparatus
|
|
US3627934A
|
|
Method and apparatus for verifying magnetic records
|
|
US3643155A
|
|
Flux gate magnetometer including backing plate
|
|
US3435833A
|
|
Coin dispenser magazine
|
|
US3447655A
|
|
Bill validator with escrow device
|
|
US3442363A
|
|
Bill escrow device
|
|
US3362532A
|
|
Apparatus for recognizing printed currency
|
|
US3256968A
|
|
Document recognizing apparatus
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