U.S. federal trademark · Serial No. 72265569 · Reg. No. 0846687
MEASURING DEVICE MADE OF FILM, SAID FILM HAVING A METALLIZED, REFLECTIVE SIDE WHICH IS PRESSED AGAINST A SURFACE TO BE EXAMINED, IS THEN REMOVED, AND THE REPLICA OF SURFACE NOW CONTAINED IN SAID SIDE OF THE FILM IS STUDIED UNDER A MICROSCOPE, OR IN OTHER MANNERS
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