CA742912A - Fire resistant closure for passageways - Google Patents

Fire resistant closure for passageways

Info

Publication number
CA742912A
CA742912A CA742912A CA742912DA CA742912A CA 742912 A CA742912 A CA 742912A CA 742912 A CA742912 A CA 742912A CA 742912D A CA742912D A CA 742912DA CA 742912 A CA742912 A CA 742912A
Authority
CA
Canada
Prior art keywords
passageways
fire resistant
resistant closure
closure
fire
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
CA742912A
Inventor
A. Bear William
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA742912A publication Critical patent/CA742912A/en
Expired legal-status Critical Current

Links

CA742912A Fire resistant closure for passageways Expired CA742912A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA742912T

Publications (1)

Publication Number Publication Date
CA742912A true CA742912A (en) 1966-09-20

Family

ID=36172092

Family Applications (1)

Application Number Title Priority Date Filing Date
CA742912A Expired CA742912A (en) Fire resistant closure for passageways

Country Status (1)

Country Link
CA (1) CA742912A (en)

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