Thorsen Tool Company marks

Undated

E-Z Twister

First recorded use: 05/15/1981; Filed: 10/21/1981; Issued: 02/28/1984

Undated

Thorsen

First recorded use: 07/01/1929; Filed: 02/07/1979; Issued: 02/17/1981

Company in Dallas, Texas

Undated

Thorsen Pro-Line [logo]

First recorded use: 10/25/1982; Filed: 08/08/1983; Issued: 04/21/1987