File:Pulvermacher chain - detail of links.jpg
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| Description |
English: Details of construction of links from Pulvermacher's chain. Figure 2 shows the grooves in the wooden core which hold the windings in place. Figure 6 shows Pulvermacher's interrupter link. |
| Date | 1st February 1853 (issued) |
| Source | US patent US9571 |
| Author | I. L. Pulvermacher |
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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 | |
|---|---|---|---|---|---|
| current | 21:36, 12 March 2011 | | 775 × 357 (45 KB) | Spinningspark (talk | contribs) | {{Information |Description=Details of construction of links from Pulvermacher's chain. Figure 2 shows the grooves in the wooden core which hold the windings in place. Figure 6 shows Pulvermacher's interupter link. |Source=US patent US9571 |Date=1st Febr |
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