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.)
Watford Engineering Works Ltd
Original Assignee
Watford Engineering Works Ltd
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 Watford Engineering Works LtdfiledCriticalWatford Engineering Works Ltd
Priority to ES80257ApriorityCriticalpatent/ES80257A1/en
Publication of ES80257A1publicationCriticalpatent/ES80257A1/en
ES80257A1921-12-141921-12-14
Improvements in machines for working paper pulp, in machines for removing dust from papers and rags, and the like.
ExpiredES80257A1
(en)