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Posted By: Myers B ECO air meter dating - Mon May 30 2022 03:18 PM
Is it possible to date an Eco air meter by the serial number? I just bought a meter head and this is the tag off of it.

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Posted By: advertologist Re: ECO air meter dating - Mon May 30 2022 03:26 PM
take your (highest latest) patent number

and that should put you in the ballpark .. ... cool

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Posted By: Myers B Re: ECO air meter dating - Mon May 30 2022 03:56 PM
Thanks for the information! I just did a quick patent search on the last number and it was filed in November of 1952.

Are the patent dates the only way to roughly date these meters?
Posted By: Cold Pizza Re: ECO air meter dating - Mon May 30 2022 06:29 PM
Buy it Dinner first.. wink
Posted By: Myers B Re: ECO air meter dating - Mon May 30 2022 06:37 PM
Ha, I was waiting for a comment like that laugh
Posted By: Ron Scobie Re: ECO air meter dating - Mon May 30 2022 10:33 PM
1953. The first number of the serial number give you the month.
Ron
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