The classical school emphasizes production of goods and services as the key focus of economic analysis. Neoclassical economics focuses on how individuals operate within an economy. As such, the neoclassical school emphasizes the exchange of goods and services as the key focus of economic analysis.. (Source : Difference Between Classical & Neoclassical Economics | eHow) Here's information about the dates of emergence of neoclassical economics:
A random sampling of other states indicates the issue is mixed. For example, Illinois taxes the equipment if it is used in a manufacturing process. In Maine, there is no exemption. In Connecticut, all fire safety equipment is exempt.
CONNECTICUT'S OVERWEIGHT TRUCK PENALTIES. Overweight trucks in Connecticut are subject to an incremental fine schedule pursuant to CGS  14-267a. Citations may be issued by specified state police, local police, and Department of Motor Vehicle (DMV) inspectors (CGS  14-267a(g)). Overweight fines are enforceable through the criminal courts by prosecutors.