Marvin H. Duncan Jr.

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Marblehead, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Parallel cutting assembly for cutting sheet material
- Patent number 5,907,984
- Issue date Jun 1, 1999
- Cutting Edge Inc.
- James S. Herman
- B26 - HAND CUTTING TOOLS CUTTING SEVERING
Information Patent Grant
Vacuum hold down conveyor system with reduced net downward force on...
- Patent number 5,779,236
- Issue date Jul 14, 1998
- Cutting Edge, Inc.
- Marvin H. Duncan
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
Information Patent Grant
Pattern shifting laser cutter
- Patent number 5,780,805
- Issue date Jul 14, 1998
- Gerber Garment Technology, Inc.
- Marvin H. Duncan
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR