NZ270073A - Triangular drawing instrument - elongate aperture in triangular sheet perpendicular to an edge bounded by 60 and 75 degree angles
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Triangular drawing instrument - elongate aperture in triangular sheet perpendicular to an edge bounded by 60 and 75 degree angles
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Application filed by Ronald WalshfiledCriticalRonald Walsh
Priority to NZ27007394ApriorityCriticalpatent/NZ270073A/en
Publication of NZ270073ApublicationCriticalpatent/NZ270073A/en
NZ27007394A1994-12-061994-12-06Triangular drawing instrument - elongate aperture in triangular sheet perpendicular to an edge bounded by 60 and 75 degree angles
NZ270073A
(en)