Esko Kotamaki

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Patents Grantslast 30 patents

Information Patent Grant
One-way clutch structure for a stationary exercise cycle
- Patent number 4,671,396
- Issue date Jun 9, 1987
- Tunturipyora Oy
- Esko Kotamaki
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Bicycle ergometer
- Patent number 4,419,890
- Issue date Dec 13, 1983
- Tunturipyora Oy
- Esko Kotamaki
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE