[AT] Tractor mower question

[Cecil Bearden]

I have a real tractor related question here::

Back in 62 Servis Mfg now Rhino patented an attachment for a rotary 
cutter (Bush Hog) that windrowed the material.  I would like to find 
this for my bat wing cutter or build one.  Patent number was 3037341, I 
downloaded a non-dimensional drawing.  This would allow me to use my bat 
wing for hay mowing instead of buying an expensive disc mower.

Has anyone ever seen one of these attachments?

Cecil in OKla