Greenman v. Yuba Power Products, Inc.
Material facts

In 1955, the plaintiff, Mr William B Greenman received a Shopsmith, which is a power tool that can be used as a saw, drill and a lathe, as a Christmas gift from his wife. In 1957, he purchased the attachment to use the tool as a lathe and he used this attachment on several occasions with ease. However, on one such occasion, the attachment flew from the machine and hit him on the head, causing severe injuries. Over ten months later, he presented a written notice to the retailer and manufacturer (Yuba Power Products, Inc) for breach of warranties and filed a complaint against both of them for damages on the grounds of breaches of warranties and for negligence.
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