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/ Wonders of Science / SCIENCE.iso / mac / program / 492C0301.dxr / 00015_Bitmap_bin3 unhilite (.png)

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Bitmap Image  |  2000-06-19  |  169KB  |  605x70  |  16-bit (8,149 colors)

Labels: greenish blue
OCR: The first working prototype helicopter was flown in the 20th century.

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