Terrence P. C. Bramer

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Ipswich, GB

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for reducing repetitive noise entering the ear
- Patent number 4,654,871
- Issue date Mar 31, 1987
- Sound Attenuators Limited
- George B. B. Chaplin
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE