Category:1977 patents
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Media in category "1977 patents"
The following 5 files are in this category, out of 5 total.
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Microcomputer Controlled Game patent US4207087A.pdf 1,158 × 1,702, 13 pages; 1.42 MB
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US4003081A Display systems with controlled color filtering (1).png 1,701 × 2,499; 159 KB
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US4003081A Display systems with controlled color filtering (2).png 1,701 × 2,499; 215 KB
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US4003081A Display systems with controlled color filtering (3).png 1,701 × 2,499; 255 KB
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US4018121A Method of synthesizing a musical sound, by John M. Chowning (filed in 1975-05-02, published in 1977-04-19).pdf 1,158 × 1,702, 32 pages; 2.59 MB