CA204644A - Door opener - Google Patents

Door opener

Info

Publication number
CA204644A
CA204644A CA204644A CA204644DA CA204644A CA 204644 A CA204644 A CA 204644A CA 204644 A CA204644 A CA 204644A CA 204644D A CA204644D A CA 204644DA CA 204644 A CA204644 A CA 204644A
Authority
CA
Canada
Prior art keywords
door opener
opener
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
CA204644A
Other languages
French (fr)
Inventor
E. Allen Earl
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 CA204644A publication Critical patent/CA204644A/en
Expired legal-status Critical Current

Links

CA204644A Door opener Expired CA204644A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA204644T

Publications (1)

Publication Number Publication Date
CA204644A true CA204644A (en) 1920-10-12

Family

ID=35079080

Family Applications (1)

Application Number Title Priority Date Filing Date
CA204644A Expired CA204644A (en) Door opener

Country Status (1)

Country Link
CA (1) CA204644A (en)

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