Today in 1926, US Patent 1578627 A was issued, an invention of John C. Baumgarten, for his “Bottle Opener.” There’s no Abstract, but the description states that the “invention relates to bottle capping implements.” It’s essentially a ring with bottle opener. I always thought those were a pretty recent invention, but this is from 1926. Here’s how it’s explained:

Since bottles containing soda water, and the like, are generally closed by crimped on caps a special implement must be used for removing these caps. There are two types of these implements generally used. One of these is a device which is applied by hand. Since this device is readily laid down in one place, when required in another, it is not always handy during the rush of customers. The other type is a device located at some station to which the bottle must be taken, and hence unless several of this type of device be installed it would necessitate considerable running back and forth.

So the object of my invention is to provide a simple, inexpensive implement to pry off said caps, and its construct such implement in the form of a ring which may be carried about for instant use. A further object of my invention is so to construct my implement so that it will not impose undue strain on; or tend to bruise the finger in removing said caps.

So he’s proposing that all bartenders where one his opener rings while working, making it part of the uniform of a barkeep.