be careful when you stick your hand down the Warner Swasey hole - thinking it might be a groundhog but instead you discover a badger!  Back in the 1960s Warner Swasey owned both Gradall and Badger (also known as Hopto).  Both companies made telescoping boom excavators.  Both had designs, production and marketing before W-S bought them. 

The pre-existing competiveness continued and the two plants and service organizations never worked well together.  W-S sold both companies in the 1970s or so.  I worked at Badger for a year in the Service department and heard all kinds of bitterness and pettiness 10-15 years after the split.  Winona did have some archive Gradall literature from the merged service days

I'll look in my archives and see if I have anything from Duplex or Badger.  Badger built their own carriers, I-beam frame and cab, using vendor driveline and hydraulics.

Bruce

1932 White 643 restored in the working museum