 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!" The International rips apart cans in three and three-tenths seconds. 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. Can-top resistance, internal resistance, cutting tooth performance, handle size and moment, the minimum strength of a woman's hand were some of the variables that had to be balanced within rigid limits. Twenty-five years of your life you put in with Piltdon, and he'd fire you just like that if you don't do the impossible. The machinist departed and Hanson locked the opener on a can. 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. Several days later, however, Piltdon himself charged into the drawing room and slapped Feetch heartily on the back, causing him to break a pencil point. "This," he exulted, "will make can-opener history. The Piltdon Super-Opener we'll call it."
 Super-Opener
 International  Minerva Mighty Midget  Universal  Super-Opener