Top IPC subclasses
1
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A01J
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1
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manufacture of dairy products
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2
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A23C
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1
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dairy products, e.g. milk, butter, cheesemilk or cheese substitutesmaking thereof
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3
|
F25B
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1
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refrigeration machines, plants, or systemscombined heating and refrigeration systemsheat pump system
|
4
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F28D
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1
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heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do n
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