In a medium sized bowl, or the container you will store the salad, mix together the garbanzo beans, wax beans, and french style green beans.
In a small bowl, combine the remainder of the ingredients (champagne vinegar down to the celery seeds on this list above), and whisk until well combined.
Pour the liquid over the beans and mix to blend.
NOTE: Best if it can sit for at least 8-10 hours in the fridge prior to serving. If you must serve sooner than that, I recommend using about 2 TB of fresh onion, diced, in place of the dried minced onion.