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United States of America Patent
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Issued Date -
Jan 13, 2011
app pub date -
Jul 10, 2009
filing date -
Jul 10, 2009
priority date (Note) -
Abandoned
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Abstract
A brake drum includes at least one groove formed within an inner braking surface. The groove defines a maximum uniform depth that is set at a drum discard diameter. If the groove is visible during inspection it is an indication that the brake drum is still useable. When the groove is no longer visible, the brake drum should be discarded.
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