Frederick Hugh Howorth

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Chorley, EN

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Patents Grantslast 30 patents

Information Patent Grant
Clean air zone
- Patent number 4,094,232
- Issue date Jun 13, 1978
- Howorth Air Engineering Limited
- Frederick Hugh Howorth
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Mattress
- Patent number 4,057,861
- Issue date Nov 15, 1977
- Howorth Air Engineering Limited
- Frederick Hugh Howorth
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Clean air zone for surgical purposes
- Patent number 4,009,647
- Issue date Mar 1, 1977
- Howorth Air Engineering Limited
- Frederick Hugh Howorth
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE