HW-100 patented 'Harmonic Drive' question

[Jim Flanagan]

Hi..
      Out of curiosity, I want to look up the patent that Heath was 
awarded for their drive system that
was used on their HW-100.  I don't own an HW-100 and understand that 
this drive was not popular
among the ham community due to backlash, etc.  I was hoping someone 
knows the patent number
that was issued back in the late 60's...  You can search for patents on 
line, however the search engine
only works back to 1975 or so.  However, you can look up a patent if you 
know the actual patent number issued.
Does anyone have record of the patent number?  Did Heath ever release 
this information.?  I thought that maybe
the assembly manual may have stated what the patent number is, but I 
don't have access to that information
either.  Please look to see if the number is printed in the manual and 
forward it to me.

I appreciate your help..
Jim
WB5KYE

-----------------------------------------------------------
Products bought, sold or traded here is the responsibility of the
parties involved.  This list and the City of Tempe are not responsible
for losses or misrepresentations of any kind.  Buyer beware!

-----------------------------------------------------------
This list is a public service of the City of Tempe, Arizona
-----------------------------------------------------------

Subscription control - http://www.tempe.gov/lists/control.asp?list=HEATH
To post - HEATH at LISTSERV.TEMPE.GOV
Archives - http://listserv.tempe.gov/archives/HEATH.html