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.)
PPG Industries Inc
Original Assignee
Pittsburgh Plate Glass Co
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 Pittsburgh Plate Glass CofiledCriticalPittsburgh Plate Glass Co
Priority to ES226570ApriorityCriticalpatent/ES226570A1/es
Publication of ES226570A1publicationCriticalpatent/ES226570A1/es
Improvements in or relating to machines organized for exerting a thickness measuring action on articles or sheet material and for dealing with said articles in accoordance with measured thickness thereof