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Adjusting tension of translucent film mounted in rectangular frames in large surface lighting systems comprises inflating film using gas, liquid, vapor or mixture of these
Adjusting tension of translucent film mounted in rectangular frames in large surface lighting systems comprises inflating film using gas, liquid, vapor or mixture of these
The method for adjusting the tension of the translucent film mounted in rectangular frames in large surface lighting systems comprises inflating the film using a gas, liquid, vapor or a mixture of these. An independent claim is included for lighting systems which use the method.
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