David W. Wion

Follow

Person

Glen Waverley, AU

People

Patents Grantslast 30 patents

Information Patent Grant
Figure for arrangement on magnetically attractive surface
- Patent number 4,294,036
- Issue date Oct 13, 1981
- Magmate Australia Proprietary Limited
- David W. Wion
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS