CA475659A - Structure de portes montantes - Google Patents

Structure de portes montantes

Info

Publication number: CA475659A
Authority: CA; Canada
Prior art keywords: door construction; acting door; upward acting; upward; construction
Prior art date: 1951-07-31
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

Other languages

Inventor

Hans Olsen Henry

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.)

Crawford Door Co

Original Assignee

Henry Hans Olsen

Crawford Door Co

Publication date

1951-07-31

1951-07-31 Application granted granted Critical

1951-07-31 Publication of CA475659A publication Critical patent/CA475659A/fr

Status Expired legal-status Critical Current

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
CA475659T

Publications (1)

Publication Number	Publication Date
CA475659A true CA475659A (fr)	1951-07-31

Family

ID=35609648

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
CA475659D Expired CA475659A (fr)			Structure de portes montantes

Country Status (1)

Country	Link
CA (1)	CA475659A (fr)

0
- CA CA475659D patent/CA475659A/fr not_active Expired

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