Patent Number 3,297,337 - Camera Crab Dolly

The inception of our favorite crab dolly began right here with the following Patent Number 3,297,337.

Mr. Sargent's Patent Attorney's filed for the Mini-Crab's patent on May 3, 1965. The patent was granted on January 10, 1967. Click on any image to enlarge.

These are actual patent diagrams that William Sargent's Patent Attorney's drew for obtaining the patent. You can download and study the entire patent PDF (all 11 pages!) for the Mini-Crab Dolly at this link: http://www.google.com/patents/US3297337

The complexity of these drawings show just how brilliant William Sargent and his design truly is! The Mini-Crab is the Patek Philippe of dollies!

This diagram in particular shows the crabbing modes and how they are achieved by using the control that's located above the Mini-Crab's push bar.