Differenze tra le versioni di "Concetto:Patented in 1891"
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(Creata pagina con " {#concept: Category:Patents Patent date::≥1/1/1891Patent date::≤31/12/1891 | Patents registered in 1891 }") |
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Versione delle 17:20, 21 dic 2013
{#concept: ≥1/1/1891≤31/12/1891 | Patents registered in 1891 }