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Patents Grantslast 30 patents

Information Patent Grant
Dual drive pencil sharpener
- Patent number 8,726,527
- Issue date May 20, 2014
- Acme United Corporation
- Richard Steven Constantine
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Information Patent Application
Knife Having a Reversible Carriage
- Publication number 20120272529
- Publication date Nov 1, 2012
- Richard Steven Constantine
- B26 - HAND CUTTING TOOLS CUTTING SEVERING