Power-driven paper carriage elevator before direction on typewriters, write rake -, - adding or similar machines

• 1. Power-driven carriage elevator before the direction for write rake machines, typewriters or the like. [P] . 德国专利： DE568791C . 1933-02-01

  机译： 在写耙机，打字机或类似设备的指示之前，使用电动小车升降机。

• 2. Power-driven paper carriage elevator before the direction for typewriters and the like. [P] . 德国专利： DE891268C . 1953-09-28

  机译： 电动纸架升降机在打字机等之前的方向。

• 3. Power-driven switching device for the paper trolley of typewriters, write rake machines and the like. [P] . 德国专利： DE556370C . 1932-08-09

  机译： 用于打字机，写耙机等的动力驱动开关装置。

• 1. Using Paper Machine Single Scan Profiles to Troubleshoot High Frequency Machine Direction Issues [C] . Timothy F. Murphy, Kevin Starr, Pete Trail Papermakers and PIMA International Leadershio Conference 2007 . 2007
• 2. Design of filter-based controllers for cross-direction control on paper machines. [D] . Thake, Andrew John. 1997
• 3. Suggestions to authors of papers submitted for publication by the United States Geological Survey, with directions to typewriters, [O] . Geological Survey (U.S.) 1909