![]() F- MECHANICAL ENGINEERING LIGHTING HEATING WEAPONS BLASTING.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 US12/103,891 priority Critical patent/US7798035B2/en Publication of US20080277552A1 publication Critical patent/US20080277552A1/en Priority to US12/883,956 priority patent/US20110187036A1/en Application granted granted Critical Publication of US7798035B2 publication Critical patent/US7798035B2/en Adjusted expiration legal-status Critical Status Expired - Fee Related 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.) Duval Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related, expires Application number US12/103,891 Other versions US20080277552A1 Google Patents Mechanical arm including a counter-balanceÄownload PDF Info Publication number US7798035B2 US7798035B2 US12/103,891 US10389108A US7798035B2 US 7798035 B2 US7798035 B2 US 7798035B2 US 10389108 A US10389108 A US 10389108A US 7798035 B2 US7798035 B2 US 7798035B2 Authority US United States Prior art keywords spring link counterbalance moment force Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google Patents US7798035B2 - Mechanical arm including a counter-balance US7798035B2 - Mechanical arm including a counter-balance
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