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{#concept: [[Category:Patents]] [[Patent date::≥1/1/1874]][[Patent date::≤31/12/1874]]
| Patents registered in 1874
}
Creata pagina con " {#concept: Category:Patents Patent date::≥1/1/1874Patent date::≤31/12/1874 | Patents registered in 1874 }"
{#concept: [[Category:Patents]] [[Patent date::≥1/1/1874]][[Patent date::≤31/12/1874]]
| Patents registered in 1874
}