Northwest Signal Supply

17410 SW 63rd Ave.

Lake Oswego, OR 97034

Tel : 1 503 635-4351

Fax: 1 503 635-4341

Never-Fail Loop Systems

7911 NE 33rd Drive, Unit 160

Portland, OR 97211 USA

Tel: 1 503 408-9248

Fax: 1 503 408-1032