John K. Hale

Follow

Person

Waterloo, BE

People

Patents Grantslast 30 patents

Information Patent Grant
Closing mechanism for a fine material pan on a manure spreader
- Patent number 4,219,163
- Issue date Aug 26, 1980
- Sperry Corporation
- John K. Hale
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING