TECO was once a store brand for tools, hardware, and farm supplies sold by Eaton's in Canada. ( An acronym for the Timothy Eaton COmpany )
Teco pottery, The Gates Teco Pottery Co., Terra Cotta, Illinois
A generic word used by professional builders for joist hangers, after the TECO company of Chevy Chase, Maryland and its products: metal clips that eliminate the need for costly mortise and tenon joinery when hanging wood joists. The company originated the product and operated from about 1933 until their liquidation by USP in 1995.