Flaw detection and marking system

Claim 1

A FLAW DETECTING AND MARKING SYSTEM, COMPRISING, IN COMBINATION: (A) MEANS FOR SCANNING A BEAM ACROSS A SURFACE OF A BODY OF SUBSTANTIALLY HOMOGENEOUS MATERIAL IN A RASTER OF SEQUENTIAL ADJACENT LINES AND FOR PRODUCING A FLAW INDICATION SIGNAL EACH TIME SAID BEAM ELEMENT OF SAID RASTER ENCOUNTERS AN IRREGULARITY IN SAID BODY, (B) MEANS FOR SUPPLYING SEQUENTIALLY A PLURALITY OF SCANNING ELEMENT POSITION INDICATING SIGNALS AS SAID BEAM SCANS EACH LINE OF SAID RASTER, EACH OF SAID POSITION INDICATING SIGNALS BEING REPRESENTATIVE OF A RESPECTIVE ONE OF A PLURALITY OF PARALLEL ELONGATED AREAS OF SAID SURFACE WHOSE MAJOR AXES ARE CROSSED BY SAID LINES OF SAID RASTER, (C) MEANS FOR SUPPLYING A TIMING SIGNAL EACH TIME A PREDETERMINED LENGTH, MEASURED NORMAL TO SAID LINES OF SAID RASTER, IS SCANNED, (D) MEANS, RESPONSIVE TO SAID POSITION INDICATING SIGNALS AND TIMING SIGNAL, FOR PROVIDING A RESPECTIVE MARK COMMAND SIGNAL FOR EACH OF SAID ELONGATED AREAS OF SAID SURFACE WHEN A PREDETERMINED NUMBER, FROM 1 TO N, WHERE N IS A WHOLE INTEGER, OF FLAW INDICATION SIGNALS ARE PRODUCED CONCOMITANTLY WITH A RESPECTIVE ONE OF SAID POSITION INDICATING SIGNALS AND DURING THE PERIOD BETWEEN SUCCESSIVE TIMING SIGNALS, AND