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pencil and a slide rule on the old page with the calculations in mechanics

Stock Photo:
Image ID: 129717578
Release Information: N/A
Copyright: Laborant
Small
500x378 6.9"x5.2" (72dpi) 277 KB
Med
1000x756 3.3"x2.5" (300dpi) 945 KB
Large
3660x2768 12.2"x9.2" (300dpi) 5.8 MB
Super
7320x5536 24.4"x18.5" (300dpi) approx.16.8 MB
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