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.)
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.)
Stevens John Landers
Original Assignee
Stevens John Landers
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 as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Stevens John LandersfiledCriticalStevens John Landers
Priority to ES4123ApriorityCriticalpatent/ES4123A1/es
Publication of ES4123A1publicationCriticalpatent/ES4123A1/es
Perfecciones llevadas en los resortes de cierre automático de puertas y otras aplicaciones del mismo género, como también en los reguladores de parar sirviendo para impedir que las puertas se cierren con violencia y en los métodos de ajuste de estos apara