Hydra-Shok Data Dump

I’ve seen some bad history lately regarding the Hydra-Shok. Federal Cartridge’s PR department keeps stating its introduction date as one year later, and some folks don’t realize that the Hydra-Shok was marketed for roughly a decade before Federal licensed the patent. Filing in February 1974, Tom Burczynski received US Patent #3,881,421 a little over aContinue reading “Hydra-Shok Data Dump”