Grate Sewer Lock Co., LLC

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Lake Orion, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
Sewer grate locking mechanism and method of installing same
- Patent number 7,201,533
- Issue date Apr 10, 2007
- Grate Sewer Lock Co., LLC
- Richard DeGreef
- E03 - WATER SUPPLY SEWERAGE