[TUHS] troff was not so widely usable (was: The UNIX Command Language (1976))

[Steve Nickolas]

On Wed, 10 Feb 2021, Richard Salz wrote:

> On Wed, Feb 10, 2021, 9:04 PM George Michaelson <ggm at algebras.org> wrote:
>
> Not sure of that, but there are other techniques to protect it, like
> patent, trademark, and trade secret.  Just like unpublished proprietary
> source code of AT&T, to coin a phrase.

I think you can't copyright the shapes, but you can copyright the vectors 
that generate them because they're technically code.

Something weird like that.

But that's how you can have all those knockoff fonts Bitstream did, and 
why a font like Book Antiqua was possible under US law.

-uso.