Sven Gunnar Svenstam

Follow

Person

Upplands Vasby, SW

People

Patents Grantslast 30 patents

Information Patent Grant
Steps, stairs and the like
- Patent number 3,993,122
- Issue date Nov 23, 1976
- Granges Essem Aktiebolag
- Sven Gunnar Svenstam
- F24 - HEATING RANGES VENTILATING