scientific, electrical, optical, weighing, measuring, signalling and supervisory checking apparatus and instruments, namely, apparatus to measure the coating thickness on sheets; apparatus and instruments for measuring coating thickness on sheets; apparatus and instruments for measuring the continuity of coatings; apparatus and instruments for detecting contaminants in coatings; apparatus and instruments to detect the absence or presence of a coating on sheets; measuring probes for measuring ...

AMPHIBIOUS AIR CUSHION VEHICLES