Hello my name is Jared Dwarshuis. About twenty years ago my friend Larry and I developed a set of simultaneous joints for woodworking. I have written a paper describing this joinery and there is a you tube presentation under the title:

A fundamentally new type of woodworking joint

The paper describing the joinery can be found either by searching for (Jared Dwarshuis) where you can see some furniture using this joint and find the paper or by searching for (simultaneous joinery)

Thanks from Jared Dwarshuis