Block · one region of the page, as the scanner read it. It may hold a whole story, part of one, several, or an advertisement; stitching blocks into articles is the next step. Text is supplied OCR.
Page 42 · column 6 of 7 · from the scan, no model involved
Electronic air deaners use etoctncal field to trap | charged particles Lice mechanical Wlers they I
I may be instated in central heating and/or air ■ conditioning system ducts I ■ Coupon Expires April 1, 2007 ■
52.9%