Exhibit 21.1

List of Subsidiaries

     The following companies are subsidiaries of the Company and are included in the consolidated financial statements of the Company:

		Percentage of Voting
NAME	Jurisdiction of Organization	Securities Owned
American Locker Security Systems, Inc.	Delaware		100	%
Canadian Locker Company, Ltd.	Dominion of Canada		100	%(1)
Security Manufacturing Corporation	Delaware		100	%
ALTRECO, Incorporated	Delaware		100	%

(1) Owned by American Locker Security Systems, Inc.