Proprietà:Application date

Data di richiesta del brevetto.

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Filtro<p>The <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Property_page/Filter">search filter</a> allows the inclusion of <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Help:Query_expressions">query expressions</a> such as <code>~</code> or <code>!</code>. The selected <a rel="nofollow" class="external text" href="https://www.semantic-mediawiki.org/wiki/Query_engine">query engine</a> might also support case insensitive matching or other short expressions like:</p><ul><li><code>in:</code> result should include the term, e.g. '<code>in:Foo</code>'</li></ul><ul><li><code>not:</code> result should to not include the term, e.g. '<code>not:Bar</code>'</li></ul>

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Patent-US-1434684.pdf +

ottobre 2, 1919 +

Patent-US-1435446.pdf +

gennaio 13, 1921 +

Patent-US-1437180.pdf +

dicembre 16, 1920 +

Patent-US-1443399.pdf +

dicembre 1, 1921 +

Patent-US-1443515.pdf +

maggio 16, 1921 +