Invention Grant
US3850217A Pneumatic tires 失效
气动轮胎

Pneumatic tires
Abstract:
A tire and wheel assembly in which one or more ingredients of a lubricant composition are enclosed separately from other ingredients, all the ingredients being enclosed in enclosing means which, on deflation of the tire, will release them into the inflation chamber of the assembly to form the composition.
Information query
Patent Agency Ranking
0/0