CA185509A - Appareil a ouvrir des portes - Google Patents

Appareil a ouvrir des portes

Info

Publication number
CA185509A
CA185509A CA000185509A CA185509DA CA185509A CA 185509 A CA185509 A CA 185509A CA 000185509 A CA000185509 A CA 000185509A CA 185509D A CA185509D A CA 185509DA CA 185509 A CA185509 A CA 185509A
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
CA000185509A
Other languages
English (en)
Inventor
Elmer Lovejoy
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
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 Individual filed Critical Individual
Application granted granted Critical
Publication of CA185509A publication Critical patent/CA185509A/fr
Expired legal-status Critical Current

Links

CA000185509A 1918-04-02 1918-04-02 Appareil a ouvrir des portes Expired CA185509A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA185509T 1918-04-02

Publications (1)

Publication Number Publication Date
CA185509A true CA185509A (fr) 1918-07-16

Family

ID=45305161

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000185509A Expired CA185509A (fr) 1918-04-02 1918-04-02 Appareil a ouvrir des portes

Country Status (1)

Country Link
CA (1) CA185509A (fr)

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