Delbar Products, Inc. (1923-2008) was a multinational auto manufacturing company which mainly produced rear-view mirrors. They were originally based in Philadelphia and created food processing equipment, before moving to a factory in Perkasie, Pennsylvania and shifting to rear-view mirrors. They later opened factories in Crossville, Tennessee and Queretaro, Mexico
Perkasie factory.
The factory in Perkasie, Pennsylvania, which has since been converted to an apartment building, was added to the National Register of Historic Places in 2018. It was once the second-largest employer in Upper Bucks County.