Today in 1990, US Patent D311868 S was issued, an invention of Kenneth J. Armstrong, for his “Beer Keg Cap.” There’s no Abstract, although in the description it includes this summary:
The ornamental design for a beer keg cap as shown and described.
Today in 1990, US Patent D311868 S was issued, an invention of Kenneth J. Armstrong, for his “Beer Keg Cap.” There’s no Abstract, although in the description it includes this summary:
The ornamental design for a beer keg cap as shown and described.