Dick E. Friesen

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Nepburn, CA

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Patents Grantslast 30 patents

Information Patent Grant
Interlocking two-piece washer
- Patent number 6,488,461
- Issue date Dec 3, 2002
- Flexi-Coil Ltd.
- Darwin L. Zacharias
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
INTERLOCKING TWO-PIECE WASHER
- Publication number 20020197133
- Publication date Dec 26, 2002
- Darwin L. Zacharias
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...