Hendricus G. de Waal

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Surrey, CA

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Patents Grantslast 30 patents

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Self-closing clamping apparatus
- Patent number 5,263,796
- Issue date Nov 23, 1993
- Canadian Rubber & Steel Ltd.
- Hendricus G. de Waal
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...