Yes, all counterbalanced forklifts are designed around the basic principles of physics, the infamous stability triangle - would suspect yours is too. At least that is what I surmised from the tinker toy video you produced a few years back... Yes, Clark was one of the first companies to produce one and the Wright Brother built the first successful airplane, Ford produced the first assembly line built automobile in 1903, Wham-O produced the first Hula Hoop in the 1950's, etc. In each case others followed.
Here is a bit of their history.
www (dot) clarkmhc (dot) com/Company/History
Clark was certainly a leader for many years but started their fall off the top of the mountain after they moved from Battle Creek, MI to Georgetown, Kentucky. Time changes every thing.
Not certain what Clark has to do with your company being able to produce & ship a product you have long proclaimed to be a world beater. Ammonia has been used as a fuel source in the past but not so successfully.