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Original: US3955883-drawings-page-3.jpg (1362x2000 165.4KB)

<a href="https://malykh.com/img/2024-04/16-c7XrwN_gLBEZ0kdmzZFk2naTVa8/US3955883-drawings-page-3.jpg"><img src="https://malykh.com/img/2024-04/16-c7XrwN_gLBEZ0kdmzZFk2naTVa8/US3955883-drawings-page-3.jpg" style="width: 40%; max-width: 1362px;"/></a>

Usage: Pentax K 30/2.8: "Wide angle photographic lens" patent (2024-04-21)