William F. Ostergren

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Terre Hill, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Flail head
- Patent number 4,451,004
- Issue date May 29, 1984
- Sperry Corporation
- William F. Ostergren
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Drive system for a manure spreader
- Patent number 4,241,879
- Issue date Dec 30, 1980
- Sperry Corporation
- William F. Ostergren
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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
Information Patent Grant
Detachable wear plate for a flail-type material spreader
- Patent number 4,097,001
- Issue date Jun 27, 1978
- Sperry Rand Corporation
- Warren H. Brackbill
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Breakaway mechanism for an improved crop material roll forming machine
- Patent number 3,934,393
- Issue date Jan 27, 1976
- Sperry Rand Corporation
- Willis R. Campbell
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING