The history, development and sales of modern recording technology for musicians, artists and manufacturers. Transducers, headphones, microphones and guitar pickups. MERCENARY is a registered trademark of Soundwave Research Laboratories, Inc.
A very minor point that I don't know the answer: It says here on the link to Zwoyer patent, in the last sentence, that Kingsford bought the works from Ford. I first took this to mean the man Kingsford but they probably really meant to say that it was a local company that named itself Kingsford after they purchased the Ford Charcoal co. works. Mr. Kingsford himself was really only the real estate broker for the lands that Henry Ford purchased to provide timber for his cars. There may have been some iron ore on these lands as well. It would be interesting to find out who first made charcoal by destructive distillation-heating of wood in the absence of air. I am guessing that it may have been the ancient arabs since they are credited with the invention of distillation. N1IPP
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