Wall-thickness sensors; electric sensors; ultrasonic sensors; optical fibre sensors; electronic wall-thickness sensors; optical sensors; digital wall-thickness sensors; piezoelectric sensors; microwave sensing apparatus; digital sensory devices being wall-thickness sensory devices; sensing apparatus; wall-thickness sensors for measuring instruments; Downloadable sensory software for analyzing data from various sensors to display readings; synchro sensors being wall-thickness, sensors; sensors...

Removable wall graphics in the nature of wall decals and wall stickers