 Which is *not* a competitor to the Piltdon Can Opener?
"The Piltdon Can-Opener is trailing the competition. "For two years there hasn't been one lousy improvement in the Piltdon Can-Opener!" Our own Piltdon opener barely manages to open a can in eight point nine without chimes. "But Mr. Piltdon, our opener still has stability, solidity. He had always wanted to devote all his time to research, but Piltdon Opener had not given him that opportunity. "We must work along classical can-opener lines. I designed this opener with sixteen degree, twenty-two minute pressure angle modified involute gear teeth, seven degree, nineteen minute front clearance cutter angle and thirty-six degree, twelve minute back rake angle.
 Super-Opener
 International  Minerva Mighty Midget  Universal  Super-Opener