[metal ladders with climbing protectors and structural parts thereof]

COMPUTER SOFTWARE FOR MANAGING, DESIGNING AND EVALUATING RAILROAD OPERATING STRATEGIES

tool in the nature of a flat plate with raised hand guide for creating lines, marks and images with hand-held implements, including airbrushes, markers, pastels, charcoal and brushes

weighing apparatus and instruments; scientific and industrial instrumentation for measuring weight and loads, forces, impulses, geometry, acceleration, vibration and noise; measuring apparatuses, namely, strain gauges, acceleration sensors, microphones, load cells, weighing cells, transverse force sensors, and electronic instruments for measuring two-dimensional distribution of force and pressure; weighing scales; instruments for detecting and measuring two-dimensional distribution of force a...