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http://www.lens.org/lens/search?q=potato&v=table&p=0&l=en&st=true&types=Granted+Patent&classIpcr=A01H5%2F00&n=50 (8093 results)
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http://www.lens.org/lens/search?classIpcr=A01H5%2F00&l=en&st=true&q=%22potato+cultivar%22&p=0&n=50 (309 results)
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n: max=100


entry
http://www.lens.org/lens/patent/US_6492580_B1
full-text entry
http://www.lens.org/lens/patent/US_6492580_B1/fulltext


html results page:
select using class-element and use href: 
<a href="/lens/patent/AU_1988_015182_A" title="AU 1988/015182 A - Novel Potato Cultivar" class="link fullText">