David W. Duncan

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Chesterfield, MO, US

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Patents Grantslast 30 patents

Information Patent Grant
Enhancement to accommodate tall beverage containers in an automatic...
- Patent number 6,367,895
- Issue date Apr 9, 2002
- Crane Co.
- John P. Huffman
- G07 - CHECKING-DEVICES

Patents Applicationslast 30 patents

Information Patent Application
Magazine vending machine
- Publication number 20020092861
- Publication date Jul 18, 2002
- Harry J. Zerwig
- G07 - CHECKING-DEVICES