At the time I left Greene, Tweed they offered products and materials for use in a number of business groups worldwide, including: Aerospace & Defense, Fluid Handling, Industrial, Medical & Biotechnology, Oilfield, and Semiconductor. The Company was established in 1863, and was still privately held at the time I retired. Most of the world's aircraft have Greene Tweed's Chemraz PTFE seals in their landing gear. Greene Tweed tool lines from the early 20th century included basa hammers and defense hammers and a series of large and larger ratchet wrenches with interchangeable sockets. At one time, I owned a furnace clock made by Greene Tweed!