File:Cessna 421 3-view line drawing.png

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Description
English: A 3-view line drawing of the Cessna 421.
Date Unknown date
Source Cessna Model 421 Owner’s Manual, D595-13 (Wichita, Kansas: Cessna Aircraft Company, n.d.), ii. Provided by Vorbeck Research Library, Sporty’s Academy, Batavia, Ohio.
Author Cessna Aircraft Company
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(Reusing this file)
The manual the image was cropped from included a defective copyright notice. The notice omits the date and copyright symbol and/or any use of the word "copyright".

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Public domain
This work is in the public domain because it was published in the United States between 1929 and 1977, inclusive, with a defective copyright notice (copyright notice information) containing at least one of the following defects:
  • Notice does not include the copyright symbol ©, the word "Copyright", or the abbreviation "Copr.";
  • Notice is dated more than one year later than the actual date of first publication;
  • Notice does not include a named claimant or does not name the actual copyright holder;
  • Notice is illegible or concealed from view;
  • It is a printed literary, musical, or dramatic work that does not include the year.
A defective notice does not invalidate copyright in cases where the error is immaterial and would not mislead an infringer, such as an abbreviated name. Additionally, foreign works created outside the US are subject to copyright restoration even with a defective notice. It is not in the public domain in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada, mainland China (not Hong Kong or Macao), Germany, Mexico, Switzerland, and other countries with individual treaties.

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Date/TimeThumbnailDimensionsUserComment
current00:55, 11 July 2023Thumbnail for version as of 00:55, 11 July 20231,211 × 1,762 (207 KB)Noha307 (talk | contribs)Remove background and imperfections
00:18, 11 July 2023Thumbnail for version as of 00:18, 11 July 20231,211 × 1,762 (913 KB)Noha307 (talk | contribs)Grayscale
00:16, 11 July 2023Thumbnail for version as of 00:16, 11 July 20231,211 × 1,762 (2.64 MB)Noha307 (talk | contribs)Uploaded a work by Cessna Aircraft Company from ''Cessna Model 421 Owner’s Manual'', D595-13 (Wichita, Kansas: Cessna Aircraft Company, n.d.), ii. Provided by Vorbeck Research Library, Sporty’s Academy, Batavia, Ohio. with UploadWizard

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