Bottle opener capacity. A specific style of bottle opener is known as a churchkey. Invented at the same time as the crown cork, it is the original bottle opener. But as well as being portable it also comes as a fixed device to be attached to vertical surfaces, often with a tray to catch the bottle tops. It does not open wine bottles. It is class 2 fulcrum type. A simple opener is a piece of metal with a rectangular or rounded opening in one end and a solid handle large enough to be gripped between the thumb and forefingers on the
P-38 can opener The P-51 is not an official Army can opener although it is often marketed as such. Official military designations for the P-38 include "US ARMY POCKET CAN OPENER" and "OPENER, CAN, HAND, FOLDING, TYPE I". As with some other military terms, "e.g.", "jeep", the origin of the term is not known with certainty; the "P-38" opener coincidentally shares a designation with the Lockheed P-38 Lightning fighter plane, which could allude to its fast performance, additionally the P-51 can opener "also" has an aircraft namesake in the North American P-51 Mustang. One technical explanation for the origin of the name is