-
-
Air control damper
-
Patent number 4,067,377
-
Issue date Jan 10, 1978
-
Anemostat Products Division, Dynamics Corporation of America
-
Leonard R. Phillips
-
A62 - LIFE-SAVING FIRE-FIGHTING
-
-
Tamper-proof window unit
-
Patent number 3,969,857
-
Issue date Jul 20, 1976
-
Anemostat Products Division Dynamics Corporation of America
-
Carroll G. Stark
-
E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
-