Category:1970s patents
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Subcategories
This category has the following 6 subcategories, out of 6 total.
- 1973 patents (4 F)
- 1976 patents (1 F)
- 1977 patents (5 F)
- 1979 patents (2 F)
Media in category "1970s patents"
The following 4 files are in this category, out of 4 total.
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David Rowland disposable safety ashtray.jpg 2,073 × 1,348; 1.08 MB
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Microcomputer Controlled Game patent US4207087A.pdf 1,158 × 1,702, 13 pages; 1.42 MB
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Motorola 68000 processor – US4296469.pdf 1,158 × 1,702, 15 pages; 1.35 MB
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US3821715 – Memory system for a multi-chip digital computer.pdf 1,158 × 1,702, 11 pages; 1.01 MB
