![]() 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 Priority to US146490A priority Critical patent/US2130456A/en Application granted granted Critical Publication of US2130456A publication Critical patent/US2130456A/en Anticipated expiration legal-status Critical Status Expired - Lifetime legal-status Critical Current Links 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 or warranty as to the accuracy of the list.) Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US146490A Inventor Engman Olof Current Assignee (The listed assignees may be inaccurate. Google Patents Folding scaffold jack or trestleÄownload PDF Info Publication number US2130456A US2130456A US146490A US14649037A US2130456A US 2130456 A US2130456 A US 2130456A US 146490 A US146490 A US 146490A US 14649037 A US14649037 A US 14649037A US 2130456 A US2130456 A US 2130456A Authority US United States Prior art keywords scaffold sections trestle jack stirrup Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US2130456A - Folding scaffold jack or trestle ![]() US2130456A - Folding scaffold jack or trestle
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