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...and there are ancillary patents, for defense of the original patent, that need to be filed in order to keep up with competition. I have a buddy who has seve
by beauzero 7y ago
...and there are ancillary patents, for defense of the original patent, that need to be filed in order to keep up with competition. I have a buddy who has several patents for polishing concrete vertically https://www.youtube.com/watch?v=ZMSR0R8tA8A https://www.youtube.com/watch?v=ZMSR0R8tA8A