Construction question/US-Canada content

[roccit_53 at scirocco.cs.uoguelph.ca (C Boyko)]

On 12:28 pm 01/04/07 "Marc Getty" <marc@getty.net> wrote:
>
> More:
>
> "Robertson had licensed the screw in England ...etc.

Very cool info BTW. I didn't mean to make it a big discussion, I just found
it odd that something so common here (that works so well too) wouldn't have
worked its way into other places. They drive much like an Allen, but with
even less chance to strip. Okay, now I know, I just never thought about it
till that show. And rights to an u=invention often DO determine how much it
gets used, no question.
Cathy