Armstrong Bros. Tool marks

Undated

Armaloy

First recorded use: 08/01/1946; Filed: 05/28/1956; Issued: 01/22/1957

Undated

Armstrong

First recorded use: 01/01/1892; Filed: 11/08/1916; Issued: 02/27/1917

Notes use on wrenches

Undated

Armstrong

First recorded use: 01/01/1892; Filed: 02/26/1957; Issued: 10/01/1957

Undated

[Strong-Arm logo]

First recorded use: 09/01/1897; Filed: 10/19/1910; Issued: 03/31/1914

Undated

[Strong-Arm logo]

First recorded use: 09/01/1893; Filed: 03/17/1955; Issued: 03/20/1956