NATIONAL SEAL-LOCK
USPTO Trademark Record · Serial No. 74398872
Trademark details
It was initially claimed by National Seal Company on 19930607.
That brand applies to the following goods and services:plastic connectors for use in landfills, waste and other containment systems in order to anchor extruded polyethylene liners to concrete and other solid materials.
You can learn more about that trademark on the USPTO website: View the USPTO record
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