All Patents of Type: tapping machines |
Patents 1 -
15
of 84
|
Number | Date | Patentee | Title | Type |
15,219 | Jul. 01, 1856 | H.A. Chapin | Tapping Gas Fittings | tapping machines |
112,626 | Mar. 14, 1871 | P.I. Perrin, J.L. Hewes | Improvement in machines for tapping boilers | tapping machines |
CA-9,267 | Oct. 19, 1878 | S.L. Worsley | Machine for tapping nuts | nut or bolt making machines |
307,749 | Nov. 11, 1884 | E.A. Delano | Drilling-machine | drill presses |
437,157 | Sep. 23, 1890 | H.W. Honeyman | Tapping attachment for drill press | tapping machines |
465,827 | Dec. 29, 1891 | H.C. Bradford | Tapping and Thread Cutting Machine | tapping machines |
489,224 | Jan. 03, 1893 | W.W. Doolittle | Tapping-machine | tapping machines |
489,317 | Jan. 03, 1893 | A. Mill | Tapping attachment for drills | tapping machines |
517,023 | Mar. 27, 1894 | T.I. Brown | Metal Tapping or Drilling Machine | drill presses |
535,420 | Mar. 12, 1895 | E.A. Searles | Drilling and tapping machine | drill presses |
583,883 | Jun. 08, 1897 | G.R. Baldwin | Tapping Machine | tapping machines |
610,208 | Sep. 06, 1898 | H.A. Tuttle | Tapping-machine | tapping machines |
628,110 | Jul. 04, 1899 | O. Mueller | Tapping-machine | tapping machines |
649,173 | May 08, 1900 | H. Mueller | Tapping-machine | tapping machines |
660,760 | Oct. 30, 1900 | O. Mueller | Tapping-machine | tapping machines |