  In this work we consider the Smirnov classes for sub-Bergman spaces. First we
point out some observations about the Smirnov property of sub-Bergman space
$H^\alpha(\varphi)$ and its relation to the defining $H^{\infty}_{1}$ function
$\varphi$. The first main result of the work deals with the range of the defect
operator over Smirnov-sub-Bergman class whereas in the last part we show that
contrary to classical Bergman spaces, Smirnov-sub-Bergman classes have
non-tangential boundary values almost everywhere on the unit circle.
