Category:1828 patents

1828 reconstruction

1828 conversions

1828 restorations

1828 renovations

1828 repairing

1828 work's replicas

1828 productions

1828 reproductions

1828 reissue models

1828 model changed

1828 released

1828 introductions

1828 re-introductions

1828 copyrighted

1828 developments

1828 discontinuations

1828 inventions

Phase of product life cycle →

1820s patents : 1821; 1824; 1825; 1826; 1828; 1829

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Patent USI1X0005315 edit.jpg 2,199 × 1,755; 828 KB

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