CA189816A - Appareil a ouvrir les contrevents - Google Patents

Appareil a ouvrir les contrevents

Info

Publication number
CA189816A
CA189816A CA000189816A CA189816DA CA189816A CA 189816 A CA189816 A CA 189816A CA 000189816 A CA000189816 A CA 000189816A CA 189816D A CA189816D A CA 189816DA CA 189816 A CA189816 A CA 189816A
Authority
CA
Canada
Prior art keywords
shutter opener
opener
shutter
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
CA000189816A
Other languages
English (en)
Inventor
John Jun. Rock
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 CA189816A publication Critical patent/CA189816A/fr
Expired legal-status Critical Current

Links

CA000189816A 1918-10-25 1918-10-25 Appareil a ouvrir les contrevents Expired CA189816A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA189816T 1918-10-25

Publications (1)

Publication Number Publication Date
CA189816A true CA189816A (fr) 1919-04-22

Family

ID=45309467

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000189816A Expired CA189816A (fr) 1918-10-25 1918-10-25 Appareil a ouvrir les contrevents

Country Status (1)

Country Link
CA (1) CA189816A (fr)

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