CA373626A - Dispositif a ouvrir et a fermer les portes - Google Patents

Dispositif a ouvrir et a fermer les portes

Info

Publication number
CA373626A
CA373626A CA373626A CA373626DA CA373626A CA 373626 A CA373626 A CA 373626A CA 373626 A CA373626 A CA 373626A CA 373626D A CA373626D A CA 373626DA CA 373626 A CA373626 A CA 373626A
Authority
CA
Canada
Prior art keywords
door opening
closing device
closing
door
opening
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
CA373626A
Other languages
English (en)
Inventor
Steele Westover Marvin
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 CA373626A publication Critical patent/CA373626A/fr
Expired legal-status Critical Current

Links

CA373626A Dispositif a ouvrir et a fermer les portes Expired CA373626A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA373626T

Publications (1)

Publication Number Publication Date
CA373626A true CA373626A (fr) 1938-05-03

Family

ID=35377950

Family Applications (1)

Application Number Title Priority Date Filing Date
CA373626A Expired CA373626A (fr) Dispositif a ouvrir et a fermer les portes

Country Status (1)

Country Link
CA (1) CA373626A (fr)

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