Wow! I stand corrected. I had no idea that they were that old.
Thanks,
Ed
On 4/26/2012 3:20 PM, Geoff Blake wrote:
Ed Palmer wrote:
but I don't think pop rivets had been invented when
they built this thing! :-D
Just as a matter of interest, the humble pop-rivet was first patented
in 1917 by Hamilton Neil Wylie, a Royal Navy Reservist and an
improved version in 1927 when he was working for Armstrong-Whitworth,
then a UK aircraft manufacturer.
I don't think that the Quartz Crystal standard had been invented in 1917........
Geoff
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