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.)
William Permai
Original Assignee
William Permai
Filing date
Publication date
Application filed by William PermaifiledCriticalWilliam Permai
Priority to BE643748DpriorityCriticalpatent/BE643748A/fr
Application grantedgrantedCritical
Publication of AU2738963ApublicationCriticalpatent/AU2738963A/en
Publication of AU282544B2publicationCriticalpatent/AU282544B2/en
AU27389/63A1963-02-141963-02-14Improvements in or relating tothe art of surface finishing, andthe production of building slabs, sheets andthe like
ExpiredAU282544B2
(en)