File:О средствах индивидуальной защиты органов дыхания работающих - djvu.djvu
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Size of this JPG preview of this DJVU file: 428 × 599 pixels. Other resolutions: 171 × 240 pixels | 343 × 480 pixels | 548 × 768 pixels | 731 × 1,024 pixels | 1,772 × 2,481 pixels.
Original file (1,772 × 2,481 pixels, file size: 606 KB, MIME type: image/vnd.djvu, 7 pages)