15 Apr
2011
15 Apr
'11
1:55 p.m.
I do not think that number is a patent number see
http://home.ix.netcom.com/~hancockm/when_was_it_made.htm
the serial number encodes date and model
but the linked page seems to miss out the 184xxx numbers
Dave Caroline
On Fri, Apr 15, 2011 at 9:39 PM, Brent Hilpert <hilpert at cs.ubc.ca> wrote:
On 2011 Apr 15, at 1:25 PM, allison wrote:
there is only one thing that was not made 1909,
that is a patent date.
?It's from much later maybe
30s or 40s at least. ?Still a find though.
I noticed that too. It's interesting there isn't a more recent patent date,
closer to the time of manufacture, as so often improvements in such a new
technology resulted in new patents from the manufacturers as they competed
for market position.