CA283362A - Dispositif a ouvrir et a fermer barrieres et portes - Google Patents

Dispositif a ouvrir et a fermer barrieres et portes

Info

Publication number
CA283362A
CA283362A CA283362A CA283362DA CA283362A CA 283362 A CA283362 A CA 283362A CA 283362 A CA283362 A CA 283362A CA 283362D A CA283362D A CA 283362DA CA 283362 A CA283362 A CA 283362A
Authority
CA
Canada
Prior art keywords
doors
opening
closing gates
gates
closing
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
CA283362A
Other languages
English (en)
Inventor
George Moss Harold
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 CA283362A publication Critical patent/CA283362A/fr
Expired legal-status Critical Current

Links

CA283362A Dispositif a ouvrir et a fermer barrieres et portes Expired CA283362A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA283362T

Publications (1)

Publication Number Publication Date
CA283362A true CA283362A (fr) 1928-09-18

Family

ID=35216453

Family Applications (1)

Application Number Title Priority Date Filing Date
CA283362A Expired CA283362A (fr) Dispositif a ouvrir et a fermer barrieres et portes

Country Status (1)

Country Link
CA (1) CA283362A (fr)

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