Johansen; Joern

Follow

Organization

US

Organizations

Please log in for detailed analytics

Patents Grantslast 30 patents

Information Patent Grant
Drawing triangle and/or protractor, in particular for blackboard use
- Patent number 5,864,959
- Issue date Feb 2, 1999
- Johansen; Joern
- Joern B. Johansen
- B43 - WRITING OR DRAWING IMPLEMENTS BUREAU ACCESSORIES

Patents Applicationslast 30 patents

Trademarklast 30 trademarks