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Identifying parts using patent numbers

Recently someone sent me a picture of an ASI using the patent number he traced this instrument to a small batch of a specific aircraft type unfortunatley lost his contact details.
Of coarse the British numbering systems rarely allows even the aircraft type to be identified so this could be a useful method to get quite specific information.
Does anyone have any ideas who to write to or contact with regard to checking old patent numbers?

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By: ian_ - 31st March 2025 at 10:09

Hello Graham, the patents office/ intellectual property office is in Newport, and I think they hold details of all patents issued. Email here: mailto:Enquiries@ipo.gov.uk

At one of their presentations they told an interesting story about bomb disposal. Apparently a new German fuse was giving trouble. A check of international patents revealed the details of the patented anti tampering device used and allowed the fuse to be disarmed safely. Sounded unlikely!

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By: smirky - 31st March 2025 at 10:08

Patent Search

go to http://gb.espacenet.com and you can do it from your armchair 🙂

(remember to include the GB prefix to the number)

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By: MerlinPete - 31st March 2025 at 10:08

Graham, you can access them all online via the Intellectual Propery Office website as far as I know.
The US Gov`t has something similar which I have used before, again online and free of charge.
You should be able to access detailled accounts of both Patents and Trademarks.

Pete

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By: smirky - 8th March 2010 at 21:38

http://v3.espacenet.com/publicationDetails/originalDocument?CC=GB&NR=504845A&KC=A&FT=D&date=19390502&DB=&locale=

Yes, GB504845, Barr & Stroud Optical Gunsight :rolleyes:

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By: Graham Adlam - 8th March 2010 at 21:26

Thanks both trying to trace Patent No: 504845/37 probably being dense but Im not sure what to enter where? do i use all of this number and do i put GB on the front? :confused:

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