CA186722A - Fire door closing apparatus - Google Patents

Fire door closing apparatus

Info

Publication number
CA186722A
CA186722A CA000186722A CA186722DA CA186722A CA 186722 A CA186722 A CA 186722A CA 000186722 A CA000186722 A CA 000186722A CA 186722D A CA186722D A CA 186722DA CA 186722 A CA186722 A CA 186722A
Authority
CA
Canada
Prior art keywords
fire door
door closing
closing apparatus
fire
door
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
CA000186722A
Other languages
French (fr)
Inventor
Everett L. Thompson
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.)
Automatic Sprinkler Corp
Original Assignee
Automatic Sprinkler 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
Application filed by Automatic Sprinkler Corp filed Critical Automatic Sprinkler Corp
Application granted granted Critical
Publication of CA186722A publication Critical patent/CA186722A/en
Expired legal-status Critical Current

Links

CA000186722A 1918-06-08 1918-06-08 Fire door closing apparatus Expired CA186722A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA186722T 1918-06-08

Publications (1)

Publication Number Publication Date
CA186722A true CA186722A (en) 1918-09-24

Family

ID=45306373

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000186722A Expired CA186722A (en) 1918-06-08 1918-06-08 Fire door closing apparatus

Country Status (1)

Country Link
CA (1) CA186722A (en)

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