ALSCHULER, Circuit Judge.
The appeal is from a decree finding valid and infringed claims 1 and 2 of United States patent to Clarke, No. 1,356,338, for improvements in surface treating machines. The claims are:
"1. In a surface treating device, an upright supporting frame, handles secured to the frame to move the same over the work, supports depending from the frame to travel upon the surface being treated, a vertically adjustable rotatable member arranged...
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