Question

add a comma, semicolon, or colon if needed. otherwise, submit the text without any additional punctuation. thomas edison is remembered for inventing the phonograph and electric light bulb, but he held more than one thousand patents for devices like an improved stock ticker, alkaline storage batteries, and an early movie camera.

Explanation:

The word "like" here is introducing a list of examples of the devices for which Edison held patents. When "like" is used to introduce examples, a colon is not needed, and a comma is also not necessary here. The structure "devices like an improved stock ticker..." is correct without additional punctuation between "like" and the first example.

Answer:

Thomas Edison is remembered for inventing the phonograph and electric light bulb, but he held more than one thousand patents for devices like an improved stock ticker, alkaline storage batteries, and an early movie camera.