NEW BOOKS ETC. TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were °ranted NOVEMBER 30 1897 AND EACH BEARINO THAT DATE. ORDINARY RATES. Inside Page each insertion. . 75 cents a line IMPROVE YOUR CONDITION. Mechanical Electrical Steam C1v il and Sanitary Engineering ing. Pattern Making. United Correspondence Schools Desks Chairs Tables 4 Nassau Street New York PHYSICAL AND SCHOOL APPARATUS TOEPLER HOLTZ SELF CHARGING MACHINE If you want the best CHUCKS buy Westcott's . The L. S. STARRETT CO 4 494949. IT SIMPLIFIES DIFFICULT WORK Threading and Cutting Machine
NEW BOOKS ETC. TO INVENTORS. INDEX OF INVENTIONS For which Letters Patent of the United States were °ranted NOVEMBER 30 1897 AND EACH BEARINO THAT DATE. ORDINARY RATES. Inside Page each insertion. . 75 cents a line IMPROVE YOUR CONDITION. Mechanical Electrical Steam C1v il and Sanitary Engineering ing. Pattern Making. United Correspondence Schools Desks Chairs Tables 4 Nassau Street New York PHYSICAL AND SCHOOL APPARATUS TOEPLER HOLTZ SELF CHARGING MACHINE If you want the best CHUCKS buy Westcott's . The L. S. STARRETT CO 4 494949. IT SIMPLIFIES DIFFICULT WORK Threading and Cutting Machine TURING ClO. 1501 Curtiss St. Toled Ohi ROCK DRILLS AIR COMPRESSORS (RAND DRILL CO.) DROP -FORGING BAGNALL-LOUD BLOCK CO. BOSTON MASS. Foot power Screw. .cutting Automatic Cross feed 9 and ii-inch Swing. Star Lathes SAVE YOUR FUEL prominent men. TO INTRODUCE OUR RADIATOR an agency. Write at once., scientific american, 1897-12-11
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