David W. Swan

Follow

Person

Harlow, GB

People

Patents Grantslast 30 patents

Information Patent Grant
Thermal imaging system
- Patent number 5,486,857
- Issue date Jan 23, 1996
- Minnesota Mining and Manufacturing Company
- David P. H. Smith
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
Information Patent Grant
Thermal imaging system
- Patent number 5,262,800
- Issue date Nov 16, 1993
- Minnesota Mining and Manufacturing Company
- David P. H. Smith
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS