US Patent 2,275,291
"Machine Tool Operating at Universal Angles in Overall Locations"
Rudolf F. Bannow

March 3, 1942 (filed April 4, 1939)

UPDATE - New! Improved! Larger Images!

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UPDATE 15june04 - It looks suspiciously like someone has cribbed my earlier and crummier images from here and is selling them on eBay, on a CD with some other stuff. Sheeesh, what a grub! Well, you can get the better versions here gratis.

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  Updated: December 8, 2004