Douglas J. Keller

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Farmingdale, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of and apparatus for processing and stacking printed forms
- Patent number 6,109,603
- Issue date Aug 29, 2000
- Kenneth A. Stevens
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method of and apparatus for processing and stacking printed forms
- Patent number 6,010,123
- Issue date Jan 4, 2000
- Kenneth A. Stevens
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Method of and apparatus for processing and stacking printed forms
- Patent number 5,887,864
- Issue date Mar 30, 1999
- Kenneth A. Stevens
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL