Herbert Edward Ashfield

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Huddersfield, EN

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Patents Grantslast 30 patents

Information Patent Grant
Control for a tractor power lift mechanism
- Patent number 4,084,641
- Issue date Apr 18, 1978
- David Brown Tractors Limited
- Herbert Edward Ashfield
- A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
Information Patent Grant
Compression springs
- Patent number 4,043,546
- Issue date Aug 23, 1977
- David Brown Tractors Limited
- Herbert Edward Ashfield
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Internal combustion engines
- Patent number 3,931,812
- Issue date Jan 13, 1976
- David Brown Tractors Limited
- Herbert Edward Ashfield
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS