All Patents of Type: metal straightening machines |
Patents 1 -
15
of 31
|
Number | Date | Patentee | Title | Type |
128,287 | Jun. 25, 1872 | R. Crooker | Improvement in machines for straightening rolled-metal plates | metal straightening machines |
152,695 | Jun. 30, 1874 | C. Scofield | Machines for Straightening Tubing Shafting &c. | metal straightening machines |
170,461 | Nov. 30, 1875 | J.S. Atkinson | Straightening Machine | metal straightening machines |
209,588 | Nov. 05, 1878 | J.S. Seaman | Machine for Edging, Sizing and Straightening Non-Cylindrical Metal-Bars | metal straightening machines |
319,603 | Jun. 09, 1885 | W.J. Muncaster | Metal bending and straightening machine | metal straightening machines |
352,652 | Nov. 16, 1886 | P. Medart | Machine for Straightening Metal Bars or Pipes | metal straightening machines |
352,705 | Nov. 16, 1886 | P. Medart | Machine for straightening metal bars or pipes | metal straightening machines |
352,706 | Nov. 16, 1886 | P. Medart | Machine for straightening metal bars or pipes | metal straightening machines |
432,636 | Jul. 22, 1890 | S. Moore | Machine for Straightening and Sizing Twist Drills | making drills and augers |
437,702 | Oct. 07, 1890 | M.D. Loomis | Converting Helical Springs to Straight Bars | metal straightening machines |
445,571 | Feb. 03, 1891 | W.A. McCool | Machine for Straightening and Polishing Metal Bars, &c. | metal straightening machines |
458,115 | Aug. 18, 1891 | E. Thomson | Method of Electric Bending and Straightening | metal bending machines |
482,000 | Sep. 06, 1892 | C.B. Brainard | Wire Straightener and Cutting Machine | metal straightening machines |
485,735 | Nov. 08, 1892 | H.F. Busking | Shaft Straightener | metal straightening machines |
525,003 | Aug. 28, 1894 | E. Hodgson, W. Copley | Straightening Machine for Shafting | metal straightening machines |