A quick search on Google turned this up http://mt.findacase.com/research/wfrmDocViewer.aspx/xq/fac.19640921_0000098.MT.htm/qx
West River Equip. Co. is mentioned in the next to last paragraph as an example of similar law suits.
Found that, in fact I found 4 suits that they were mentioned in, I was hoping to find some history and to see if they were still in business under aother name. The document has a picture of all the men that visited Cat. in 1952.