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Dating with patent numbers

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Dating with patent numbers

Post  Guest on Sat Nov 14, 2009 8:07 am

Here is a site that may help with dating items, it will only give you the year the patent was issued, If you had a patent no of1153516 that would put it in the year bracket of 1915 - 1916. So it would probably be post 1915.

http://www.mugwumps.com/patents.htm

Hope its of interest.

Paul cheers

Guest
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