File:US3541541 X-Y position indicator for a display system.pdf
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English: US patent application 3541541, X-Y position indicator for a display system, filed 21 June 1967, published 17 November 1970. |
| Date | |
| Source | https://patents.google.com/patent/US3541541A/ |
| Author | Douglas Carl Engelbart |
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The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
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| current | 05:30, 5 October 2021 |  | 1,158 × 1,702, 7 pages (791 KB) | FreeMediaKid! (talk | contribs) | Uploaded a work by Douglas Carl Engelbart from https://patents.google.com/patent/US3541541A/ with UploadWizard |
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