Fetter, William Alan & Bernhart, W. D. 1970. Planar Illustration Method and Apparatus.
Planar Illustration Method and Apparatus
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title: | Planar Illustration Method and Apparatus |
year: | 1970 |
Bibliographic Entry
Description
US Patent No. 3,519,997 – filed Nov. 13th 1961, issued July 7th 1970.
World’s first “true software patent” 306.
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