Michael E. Jantzen

Follow

Person

Carlyle, IL, US

People

Patents Grantslast 30 patents

Information Patent Grant
Heat gain and retention structure, particularly a cold frame
- Patent number 4,671,011
- Issue date Jun 9, 1987
- Michael E. Jantzen
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING