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Photograph 113800 Second World War, 1939-1945SYDNEY, NSW. 1945-07-11. MR A. R. CAVINIE OF GRANVILLE, NSW, THE INVENTOR OF THE "OZONE VARIABLE PITCH PROPELLER" SUBMITTED TO THE AUSTRALIAN ARMY INVENTIONS DIRECTORATE, 117 PITT STREET.

The Australian War Memorial Collection. Test site
MELBOURNE, VIC. 1943-01-20. INVENTOR MR REG GLEADALL, OF EASTERN AVENUE, ELWOOD, A COMMERCIAL TRAVELLER IN CIVILIAN LIFE, WHO HAS HAD NUMEROUS INVENTIONS ACCEPTED BY THE ARMY INVENTIONS DIRECTORATE. HIS INVENTIONS INCLUDE A NUMBER OF NEW TYPES OF GRENADES AND BOMBS.
SYDNEY, NSW. 1945-07-11. MR A. R. CAVINIE OF GRANVILLE, NSW, THE INVENTOR OF THE "OZONE VARIABLE PITCH PROPELLER" SUBMITTED TO THE AUSTRALIAN ARMY INVENTIONS DIRECTORATE, 117 PITT STREET.

SYDNEY, NSW. 1944-02-01. MR ZIMMERMAN, THE INVENTOR OF A SPECIAL HACKSAW DEMONSTRATES IT'S CAPABILITIES TO MR SERVICE, AUSTRALIAN ARMY INVENTIONS DIRECTORATE NX28 COLONEL G. G. HAYMAN, DEPUTY DIRECTOR

Mr Zimmerman, the inventor of a special hacksaw, demonstrates its capabilities to Service Australian Army Inventions Directorate NX28 Colonel G. G. Hayman, Deputy Director of Mechanical Engineering He
VIC. 1943-03-09. SERGEANT R. E. CAVE OF THE AUSTRALIAN VOLUNTEER DEFENCE CORPS WORKING AT HIS CIVILIAN OCCUPATION AS A COMMERCIAL TRAVELLER, TYING UP A SELECTION OF SAMPLES.

MELBOURNE, VIC. 1944-07-11. MR. E.C. ALLAN, SECRETARY OF THE AUSTRALIAN ARMY INVENTIONS DIRECTORATE, (2), OPERATING A 16MM. MOVIE PROJECTOR TO SHOW VX1 GENERAL SIR THOMAS BLAMEY, GBE., KCB., CBG., DSO

BRAYBROOK, VIC. 1945-09-21. MAJOR W. EARWAKER, DIRECTORATE OF ARMY INVENTIONS, DEMONSTRATING THE DRIVERS POSITION ON A BREN GUN CARRIER WHICH HAS BEEN MODIFIED FOR USE AS A FARM TRACTOR.
