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LAB Security Systems

Labor Saving Devices

Chas O. Larson Co.

Latch-Gard Co. Inc.

Lawrence Bros. Inc.

LCN Closers Lightwave

Linear Corporation

LKL Innovations

Lloyd Matheson Inc. (Lockwood)

Lock Technology Corporation

Lockmasters

Locknetics Security Engineering

The Logica Group

LPS Laboratiories Inc.

L.S. Starrett Co.

Lucky Line Products Inc.

Lund equipment Co. Inc.