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æ˜å’Œ22年（1947年）製作ã®
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Rough English translation…
Cit from Page 2
1947 (1947) production
"Universal Robot No. 2"
Made with students in Senior high school was founded four decades Jubilee Metropolitan Industrial vine "Mr. Ichiro " is your brother, was made following.
Opened back of robot.
See the full Jiro Aizawa story here 
.