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.
Not every state was for factory legislation. The state of Connecticut had laws in the 1880s on fire safety and railroad safety, but the commissioner of labor statistics did not believe that a factory inspection and safety and law was warranted. He felt that there were more serious occupational safety and health threats in non factory work.