David Haywood

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Christchurch, NZ

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Patents Grantslast 30 patents

Information Patent Grant
Pressure wave generator
- Patent number 8,171,742
- Issue date May 8, 2012
- Industrial Research Limited
- Alan James Caughley
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

Information Patent Application
Pressure Wave Generator
- Publication number 20080253910
- Publication date Oct 16, 2008
- Alan James Caughley
- F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...