<div class="description">
Patent #2,463,743 for a hydrogen tube designed by H. Howard Cary and Warren Baxter during their time at National Technical Labs, a precursor to Beckman Instruments. This tube was designed for use in UV spectrophotometers to provide a consistent source of ultraviolet radiation. It improved on previous designs by being smaller, but avoiding the problems with decreased tube life that usually accompanied a decrease in size.</div>
1949-Mar-08
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<ul><li><a rel="nofollow" class="external text" href="https://digital.sciencehistory.org/works/br86b4380">Record in source catalog</a></li>
<li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/8bfdf9b09c887d95b8ab93801c94c065">8bfdf9b09c887d95b8ab93801c94c065</a></li>
<li>Science History Institute identifier: padig:SHI-br86b4380</li></ul></span>