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Individual
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Publication of FR2124256A1publicationCriticalpatent/FR2124256A1/fr
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Publication of FR2124256B1publicationCriticalpatent/FR2124256B1/fr
B60C11/14—Anti-skid inserts, e.g. vulcanised into the tread band
B60C11/16—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile
B60C11/1606—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug
B60C11/1612—Anti-skid inserts, e.g. vulcanised into the tread band of plug form, e.g. made from metal, textile retractable plug actuated by fluid, e.g. using fluid pressure difference