IT988667B - AUTOMATIC SYSTEM FOR THE CLOSING AND OPENING OF DOORS PROGRAMMED FOR INTERVENTION IN THE EVENT OF FIRE - Google Patents

AUTOMATIC SYSTEM FOR THE CLOSING AND OPENING OF DOORS PROGRAMMED FOR INTERVENTION IN THE EVENT OF FIRE

Info

Publication number
IT988667B
IT988667B IT2447473A IT2447473A IT988667B IT 988667 B IT988667 B IT 988667B IT 2447473 A IT2447473 A IT 2447473A IT 2447473 A IT2447473 A IT 2447473A IT 988667 B IT988667 B IT 988667B
Authority
IT
Italy
Prior art keywords
doors
intervention
programmed
fire
event
Prior art date
Application number
IT2447473A
Other languages
Italian (it)
Original Assignee
Won Door Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US256120A external-priority patent/US3890293A/en
Application filed by Won Door Corp filed Critical Won Door Corp
Application granted granted Critical
Publication of IT988667B publication Critical patent/IT988667B/en

Links

IT2447473A 1972-05-23 1973-05-23 AUTOMATIC SYSTEM FOR THE CLOSING AND OPENING OF DOORS PROGRAMMED FOR INTERVENTION IN THE EVENT OF FIRE IT988667B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US256120A US3890293A (en) 1971-06-01 1972-05-23 Method of producing aldehyde functional multi-component copolymers

Publications (1)

Publication Number Publication Date
IT988667B true IT988667B (en) 1975-04-30

Family

ID=22971168

Family Applications (1)

Application Number Title Priority Date Filing Date
IT2447473A IT988667B (en) 1972-05-23 1973-05-23 AUTOMATIC SYSTEM FOR THE CLOSING AND OPENING OF DOORS PROGRAMMED FOR INTERVENTION IN THE EVENT OF FIRE

Country Status (2)

Country Link
AU (1) AU474051B2 (en)
IT (1) IT988667B (en)

Also Published As

Publication number Publication date
AU5599773A (en) 1974-11-28
AU474051B2 (en) 1976-07-15

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