John Stobart

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Boston, MA, US

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Patents Grantslast 30 patents

Information Patent Grant
Canvas tensioning picture frame
- Patent number 5,052,462
- Issue date Oct 1, 1991
- John Stobart
- B44 - DECORATIVE ARTS
Information Patent Grant
Tensioning stretched-canvas frame and method for use
- Patent number 4,947,922
- Issue date Aug 14, 1990
- John Stobart
- B44 - DECORATIVE ARTS