There is a wine store near Banashankari. The name of the store is “Wine”. This is the first time I have seen a type of product as the name of the store. May be I haven’t noticed earlier. But two types of products combined can form a proper noun (name of a store in this case). There are many examples for this. “Greens and grains”, “Cakes and breads”, “Sugar and Ice” are names of vegetable stalls, bakery, eatery respectively in Bangalore. What makes the difference between “Type of product” and “Type of product AND Type of product”? The difference is “AND”. “And” can make proper nouns.