Kennedy Kilns
The Engineering Company if Portugal, Ltd.
Trench, Tunnel & Pipe Work by Compressed Air
The Northwest Exhaust
Cameron - Steam pumps
Victor - Máquina de Calcular Electrónica, de Secretária (Modelo 12-111)
Victor - Máquina de Calcular Electrónica, de Secretária (Modelo 1503)
Randolph - Extintor de incêndio de gás carbónico
Permutit