Honeywell is a global company that traces its roots back to the invention of the furnace regulator in 1885. Today, its business lines include defense, aviation, chemical production, warehouse automation, and, it hopes, a new face-mask-noise-cancelling-headphone developed with musician Will.i.am. It also has a major presence in China, a country it first entered in 1935. After China re-established formal relations with the U.S. in 1979, Honeywell began setting up joint ventures with state-owne