Andr Kole is indeed the inventor of the modern No Feet Illusion. When I was researching my Joe Karson book I came across a trick Karson had contributed to "The Conjurors Magazine" in 1949. Here is the excerpt from the bibliography of my book, "Joe Karson - Beyond Zombie."
No Feet - Some Feat. "The Conjurors Magazine" Volume 5 #7 (September 1949): 22. This was a concept contributed by Karson for a stage illusion that, although interesting on paper, really isnt all that practical. In effect, a cloth is held in front of the legs of the magician, when lifted both feet are seen to be missing. This article later appeared reprinted in "The Conjurors Book of Stage Illusions," edited by Micky Hades, page 69. Again, it appeared, with minor editing, in "The Encyclopedia of Stage Illusions," by Burling Hull (edited by Ormond McGill), page 215-216. In all of the instances, Ed Mishells original artwork from "The Conjurors Magazine" was used. Famed illusionist, Andr Kole, sites this as the inspiration for his modern No Feet illusion. Koles version has a radically different look and method from the original Karson idea. Kole took Karsons basic premise and evolved it into a practical and considerably more deceptive illusion. Doug Henning was also known to successfully feature the Kole version in his shows.
Feel free to e-mail me if you have any questions, Id be glad to try to help.