Douglas Whittington

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Malden, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus and method for producing a printing screen
- Patent number 5,444,212
- Issue date Aug 22, 1995
- Wear Guard Corp.
- George MacNaughton
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Apparatus and method for producing a printing screen
- Patent number 5,334,815
- Issue date Aug 2, 1994
- Wear Guard Corp.
- George MacNaughton
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR