Gentex was created in 1974.

The symbol for Gentex Corporation in NASDAQ is: GNTX.

The Gentex Corporation was founded in 1974. You can read more about the Gentex Corporation online at the Wikipedia. Once on the page, type "Gentex Corporation" into the search field at the top of the page and press enter to bring up the information.

As of July 2014, the market cap for Gentex Corporation (GNTX) is $4,237,226,167.68.

these are the loudest i have have heard:

1. simplex truealerts horn/strobes

2. simplex 4040s

3. gentex commander 3s

4. simplex 4051s

5. wheelock 7002ts

6. gentex gms

7. simplex 4263-10

8. federal vibratone 350s

9. simplex 4050s

10. wheelock mb g10 24r fire bell