B - Operations – Transporting – 60 – C
Patent
B - Operations, Transporting
60
C
152/126
B60C 11/04 (2006.01)
Patent
CA 1158533
Abstract of the Disclosure A heavy duty pneumatic tire having a tread provided on its outer surface with a plurality of circum- ferential grooves is disclosed. At least one groove of these circumferential grooves is opened on the tread surface at an open groove width corresponding to 2-8% of tread transverse width, has a groove bottom width substan- tially equal to the open groove width, and is provided on its groove bottom with plural protrusions separated apart from the opposed groove walls and at an interval between the adjoining protrusions in the circumferential direction of the groove.
365471
Miyamura Nobuhiro
Takigawa Hiroyoshi
Bridgestone Tire Company Limited
Swabey Ogilvy Renault
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