David J. Hasler

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Caddington, GB

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Patents Grantslast 30 patents

Information Patent Grant
Process of recovering fibres
- Patent number 4,264,412
- Issue date Apr 28, 1981
- The Wiggins Teape Group Limited
- David J. Hasler
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Microcapsules, method for their preparation, and sheet material car...
- Patent number 4,105,823
- Issue date Aug 8, 1978
- Wiggins Teape Limited
- David J. Hasler
- B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS