thanks [MENTION=61614]verktyg[/MENTION] for all of the excellent detailed information!
one question comes to mind regarding the dates. in message nr. 25 of the cr discussion posted by [MENTION=57649]iab[/MENTION] above Norris states that Helyett operated two manufacturing facilities and sold off the first to Griffon in 1962. He says they retained and kept in use the second, producing Helyett machines until 1966.
your date of 1962 for the MICMO acquisition of the Helyett name is one i have read elsewhere. wonder if Norris may be mistaken here or if there is a wrinkle which provides some grain of truth in both dates.
thank you again. this great detail much appreciated here!