When a buyer makes known to the seller the particular purpose for which goods are required as to show that buyer relies on seller’s skill and judgment and the goods are of description which it is in the ordinary course of seller’s business to supply
When a buyer makes known to the seller the particular purpose for which goods are required as to show that buyer relies on seller’s skill and judgment though the seller does not, in the ordinary course of its business, supply such goods
When goods are bought by description from a seller who deals in goods of that description, whether as a manufacturer or otherwise and the buyer has examined the goods and found defects in the same
When there is a contract for the sale of a specified article under its patent or another trade name