Julian Dyer noted in 030228 MMDigest:

> The Morse report gives patent number 1,085,989 for the Duo-Art
> perforators.  Looking this number up on the US Patent Office web site
> (www.uspto.gov) shows that it's not right -- this patent is for a
> "Signalling Device" by SL Martin and WA Smith!  It was granted on the
> same day (February 3rd, 1914), so the real number must be fairly close.

The correct patent number is 1,085,986.  The patent was issued
to A. De Kleist and F. L. McCormick for a "Feed Mechanism for
Perforating Machines."

Paul West
Mountain View, CA