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Entratech Systems has Patents in US, EU, China and other countries

Entratech Systems runs a turnkey operation in this modern facility - designing, engineering and manufacturing the highest quality, most trusted sensors in the industry. The integrity of our professional staff has proven itself for years, partnering with customers and sharing the latest in product technology.

Below are some links to some of the patents we hold:
PRODUCT: PATENT INFO:
Fuel Filter Device U.S. Patent No. 11850539
  U.S. Patent No. 11123666
  U.S. Patent No. 9522353
  CANADA Patent No. 2923678
  CHINA Patent No. 105637209A
  EUROPEAN PATENT OFFICE Patent No. 3033518
  FRANCE Patent No. 3033518
  GERMANY Patent No. 3033518
  GREAT BRITAIN Patent No. 3033518
US/CON - Fuel Filter Device Patent Pending
*Signal Filters is the filter division of and manufactured by Entratech Systems LLC

For more information, contact an Entratech Systems representative:
PH: 419-433-7683  |  FAX: 419-433-8293
Or e-mail:

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Entratech E
Entratech Systems LLC
202 East Fox Rd.
Sandusky, OH 44870

PH: 419-433-7683
FAX: 419-433-8293