War tanks with circular saws, rollers and poison spray

Letter to the Bureau of Science and Industry

War tanks with circular saws, rollers and poison spray
Page(s): 1  
Title: War tanks with circular saws, rollers and poison spray
Subtitle: Letter to the Bureau of Science and Industry
Date: 28 January 1921
Content creator: George Valder, Department of Agriculture
Keywords: weeds, tanks, machinery, poison, environment, weed, tank
Record creator: Advisory Council of Science and Industry
Reference: A8510, 81/83

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