California's College of Agriculture has I perfected a new automatic device for shelling walnuts. They are nicked by a circular saw, a tiny explosive charge* of acetylene and oxygen is inserted, and when they are passed into an ignition chamber a gas flame fires the charge. In 60 per cent of cases the nut leaves the shell whole. I
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https://paperspast.natlib.govt.nz/newspapers/AS19390411.2.35
Bibliographic details
Auckland Star, Volume LXX, Issue 84, 11 April 1939, Page 7
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59Untitled Auckland Star, Volume LXX, Issue 84, 11 April 1939, Page 7
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Acknowledgements
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