Wow. This 1966 ad is so bizarre on so many fronts...let's look it over, point-by-point, shall we?
1] The 'Swing-Door' concept: Unless you want to experiment with the novelty of trying to seal water behind a folding or by-pass design, what other kind of door is there?
2] The boast about loading up to 17 sets of dishes 'any way you like': Sure, if you don't mind washing 17 sets of still-dirty dishes by hand afterwards.
3] Finally, regarding the marquee claim about putting a barefoot and blindfolded ten-year-old to work: Please consult an attorney regarding applicable child labor laws.