| Information | |
|---|---|
| has gloss | eng: The Welin breech block was a revolutionary stepped, interrupted thread breech, invented by Axel Welin in 1889 or 1890. Shortly after, Vickers acquired the British patents. |
| lexicalization | eng: Welin breech block |
| instance of | c/Artillery components |
| Media | |
|---|---|
| media:img | Sailor looking into the breech of 16 inch gun aboard USS Alabama (BB-60).jpg |
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