WOOLLEY, Circuit Judge.
The Macbeth-Evans patent (No. 1,342,744) is for a lamp lens with ridged and grooved surfaces surmounted by a colored vizor, at one time popular with automobile owners. After this court had held the patent valid (284 F. 193), the District Court, on interlocutory decree, found it infringed by the L. E. Smith violet ray lens of similar design and ordered an accounting. As the invention had to do with glass — an always troublesome subject...
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