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#777946
Mon May 30 2022 09:18 AM
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Joined: Nov 2018
Posts: 151 Likes: 3
Petro Enthusiast
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OP
Petro Enthusiast
Joined: Nov 2018
Posts: 151 Likes: 3 |
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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Please - NO offers to Buy or Sell in this forum category
Statements such as, "I'm thinking about selling this." are considered an offer to sell.
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Joined: Sep 2007
Posts: 19,456 Likes: 1014
Veteran Member
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Veteran Member
Joined: Sep 2007
Posts: 19,456 Likes: 1014 |
take your (highest latest) patent number and that should put you in the ballpark .. ... 
RANDY
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Joined: Nov 2018
Posts: 151 Likes: 3
Petro Enthusiast
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OP
Petro Enthusiast
Joined: Nov 2018
Posts: 151 Likes: 3 |
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?
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Joined: May 2005
Posts: 4,640 Likes: 42
Veteran Member
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Veteran Member
Joined: May 2005
Posts: 4,640 Likes: 42 |
Buy it Dinner first.. 
Collecting Vintage Sunoco
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Joined: Nov 2018
Posts: 151 Likes: 3
Petro Enthusiast
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OP
Petro Enthusiast
Joined: Nov 2018
Posts: 151 Likes: 3 |
Ha, I was waiting for a comment like that 
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Joined: Dec 2000
Posts: 1,728 Likes: 19
Veteran Member
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Veteran Member
Joined: Dec 2000
Posts: 1,728 Likes: 19 |
1953. The first number of the serial number give you the month.
Ron
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