Leszczynski Michael J.
Levy Victor
Lewcock Keith Owen
Lexvold Timothy J.
Libert Scott D.
Liebregts Roland H.
Lienbacher Richard
Lily Corporation
Lindstrom Douglas Willard
Linfield Peter M.
Lingen Paul
Linsley Donald M.
Lloyd Harold
Locke Reginald A. J.
Loewe Henri
Logix Insulated Concrete Forms Ltd.
Lombardi Rocco A.
Longhenry Charles C.
Longpre Claude
Lorenz Kesting