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Everything posted by sadbrewer

  1. Just to follow this up Stephen, an article written a few years later said the initial patent lapsed in 1916. I'll post the article asap. Andy
  2. An expalnation from 1921 Further from 1927
  3. Hi All...it seems as though the idea lasted for a few years at least, this Ad was from 1927.
  4. https://www.concertina.net/forums/index.php?/topic/13367-whats-this/&tab=comments#comment-216354
  5. 10 years and one day to the last post, this article solves the issue...hope this is helpful, Andy
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