Structure and method for holding and protecting vials in levels

Structure for a tape measure

Structure for electrical connections and panel assembly

Structure for the endpiece of tape rule

Structure for the head of measuring tape

Structure leveling system

Structure mountable assembly

Structure mountable assembly

Structure of an electrical measuring tape

Structure of an ink cup

Structure of an overlay mark and its dosimetry application

Structure of electrical connecting device

Structure of isometric ellipse scale

Structure of measuring tape

Structure of plate positioning arrangement

Structure of vertical and horizontal surveying instrument

Structure tape rule

Structure tape rule housing

Strut height adjusting apparatus

Stud alignment and positioning tool