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Multi-stepped tread for e.g. pneumatic tire of motor car, has broad running surfaces, and steel belt, where one of running surfaces has contact with road surface, and tread is angular stepped or rounded
Multi-stepped tread for e.g. pneumatic tire of motor car, has broad running surfaces, and steel belt, where one of running surfaces has contact with road surface, and tread is angular stepped or rounded
The tread has a set of broad running surfaces (A, C), and a steel belt (B), where the running surfaces are made of solid rubber or laminated rubber layers, where the tread is angular stepped or rounded. One of the running surfaces has a contact with a road surface. An independent claim is also included for a blade wheel.
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