As mentioned the other day, recently I picked up a Japanese patented corkscrew (patent # 64,845) from 1922. And, in the patent drawing it shows a can opener that is house within the handle.
Also, as previously mentioned, I promised to give the handle a good twist, just in case the can opener was actually was present.
There will be no big reveal here, as the handle is solid wood; pinned on the side, but no can opener…
Still, a nice addition to the growing Japanese patent corkscrew collection.