Robert W. Wrightson

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St. Marys, AU

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Patents Grantslast 30 patents

Information Patent Grant
Shaft and pulley assembly
- Patent number 4,643,644
- Issue date Feb 17, 1987
- F.F. Seeley Nominees Pty., Ltd.
- Anthony D. Colliver
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Pulley mounting means
- Patent number 4,576,505
- Issue date Mar 18, 1986
- Coolair Corporation Pte. Ltd.
- Robert W. Wrightson
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Evaporative cooler pad frame support
- Patent number 4,443,386
- Issue date Apr 17, 1984
- F. F. Seeley Nominees Pty. Ltd.
- Robert W. Wrightson
- F28 - HEAT EXCHANGE IN GENERAL