Hendrikus J. Schijf

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St. Amandsberg, BE

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Patents Grantslast 30 patents

Information Patent Grant
Sandwich panel and end strips therefor and assembly of such sandwic...
- Patent number 4,644,724
- Issue date Feb 24, 1987
- Contractual Services (Jersey) Ltd.
- Hendrikus J. Schijf
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Double-walled panel
- Patent number 4,644,725
- Issue date Feb 24, 1987
- Contractual Services (Jersey) Ltd.
- Hendrikus J. Schijf
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS