Top IPC subclasses
1
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A01C
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1
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Planting; sowing; fertilising
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2
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A01H
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1
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New plants or processes for obtaining them; plant reproduction by tissue culture techniques
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3
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C12N
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1
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Micro-organisms or enzymes; compositions thereof; propagating, preserving, or maintaining micro-organisms; mutation or genetic engineering; culture media
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