| Patents for George Langen |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 771,373 | Oct. 04, 1904 | G. Langen | Gearing | metalworking machine gearing |
| 775,372 | Nov. 22, 1904 | G. Langen | Counter-shaft with changeable speed | metalworking variable speed mechanisms |
| 937,707 | Oct. 19, 1909 | G. Langen, C. Meier | Side-Head Tool-Holder for Metal-Planers | metal planer tool holders |
| 973,801 | Oct. 25, 1910 | G. Langen, C. Meier | Belt-Gearing | metalworking machine gearing |
| 1,029,875 | Jun. 18, 1912 | C. Meier, G. Langen | Metal-Working Planer | metal planers |
| 1,205,640 | Nov. 21, 1916 | C.G. Johannesmeyer, G. Langen | Metal-planer | metal planers |
| 1,282,088 | Oct. 22, 1918 | G. Langen | Gearing | metalworking machine gearing |
| 1,707,476 | Apr. 02, 1929 | G. Langen, R. Hohnhorst | Click Box | metalworking machine mechanisms |
| 1,718,726 | Jun. 25, 1929 | G. Langen, R. Gillham, T. Addison | Oiling System | metalworking machine lubrication |
| 1,760,639 | May 27, 1930 | G. Langen, F. Wetzel, T. Addison, R. Gillham | Control Mechanism for Metal Planers | machine tool controls |
| 1,842,425 | Jan. 26, 1932 | T. Addison, H.L. Rambo, G. Langen | Feed Mechanism for Machine Tools | metalworking machine mechanisms |
| 1,986,006 | Jan. 01, 1935 | B.B. Quillen, G. Langen, R.H. McClellan | Machine Tool Construction | metal planers |
| 2,343,503 | Mar. 07, 1944 | G. Langen, K.F. Gallimore | Table Drive for Machine Tools | metalworking power transmission |
