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.)
Expired - Lifetime
Application number
AU4552/46A
Original Assignee
present invention relates to provided for them methods of making perforated plates and According tothe present invention more particularly plates having alarge the header plates are punched while flat number of accurate closely spaced holes
Filing date
Publication of AU132277B2publicationCriticalpatent/AU132277B2/en
Application filed by present invention relates to provided for them methods of making perforated plates and According tothe present invention more particularly plates having alarge the header plates are punched while flat number of accurate closely spaced holesfiledCriticalpresent invention relates to provided for them methods of making perforated plates and According tothe present invention more particularly plates having alarge the header plates are punched while flat number of accurate closely spaced holes