Robert A. Abt

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St. Louis, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Coin storage and changing mechanism
- Patent number 6,202,823
- Issue date Mar 20, 2001
- Crane Co.
- Christine Ruth Howard
- G07 - CHECKING-DEVICES
Information Patent Grant
Vending machine for dispensing beverage containers
- Patent number 5,806,712
- Issue date Sep 15, 1998
- Crane Co.
- Carl H. Siemsen
- G07 - CHECKING-DEVICES