|
CA1062141A
|
|
Heat radiation closure
|
|
US4039017A
|
|
Heat radiation closure
|
|
US3861443A
|
|
Fire and heat radiation damper
|
|
US3793932A
|
|
Air damper
|
|
US3729043A
|
|
Fire damper with smoke seal
|
|
US3682084A
|
|
Combined ventilating louver and back draft damper
|
|
US3613795A
|
|
Electrically and/or thermally actuated release link
|
|
US3538975A
|
|
Fire damper
|
|
US3504615A
|
|
Nonturbulent fire damper
|
|
FR1529708A
|
|
Moderator device, in particular for flame arrestor installation
|
|
GB1189881A
|
|
Air Control Device
|
|
US3327766A
|
|
Damper frame
|
|
GB1114215A
|
|
Blade assembly and fire damper including same
|
|
US3327764A
|
|
Damper and method of making same
|
|
US3204548A
|
|
Damper construction
|
|
CA860032A
|
|
Damper and method of making same
|
|
CA860031A
|
|
Damper and method of making same
|
|
CA791997A
|
|
Damper frame
|
|
CA883559A
|
|
Fire damper
|
|
CA853946A
|
|
Damper and method of making same
|
