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Stalin M
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What J. B. Dunlop invented?
A. Pneumatic rubber tire
2 votes (66%)
A. Pneumatic rubber tire
B. Automobile wheel rim
1 vote (33%)
B. Automobile wheel rim
C. Rubber boot
0 votes (0%)
C. Rubber boot
D. Model airplanes
0 votes (0%)
D. Model airplanes
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