Here's a link to the old thread. I can't find mention of the name of the company that makes the tillers, but perhaps it will be useful anyway.

http://www.express27.org/msgs/?f=1&m=421

:: The original tiller was the same as the standard tiller
:: for a Catalina 22, made somewhere in California, and
:: available in chandleries. There is an earlier comment (a
:: couple of years ago) on this with the name of the
:: company that makes the tillers.