Invention and Design

A and P Show Make and Model 1994

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A and P Show Make and Model 1995

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Hydro-electric Power Scheme Letter 1920

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Hydrogas Unit Fitted to Car

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Katranski Fashion Display

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Kingsford-Smith's Southern Cross Aeroplane

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Magazine Article 1987 - Radio tracking

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Magazine Article 1991 - Missing in action no more

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Magazine Article 1993 - From possums to people ... electronics firm grows

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Magazine Article 1994 - Tuned in to natural habits

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Magazine Article 1997 - Radio-Tracking Possums

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Magazine Article 1998 - Ecologists have 30 years' experience in wildlife research and welfare

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Magazine Article 1999 - On Track

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Magazine Article 2001 - Sirtrack’s dilemma solved

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Magazine Article 2001 - Tracking another Christchurch technology cluster home run

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Modern Manufacturing 1955

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Mokopeka Power Scheme

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Newspaper Article 1987 - HB tracking device an export earner

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Newspaper Article 1988 - Wildlife wired for research

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Newspaper Article 1989 - Unpredictable life

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