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Patent applications and USPTO patent grants for Raubenheimer; Johann N..The latest application filed is for "suction cleaner for submerged surfaces".
Patent | Date |
---|---|
Suction cleaner for submerged surfaces Grant 4,656,683 - Raubenheimer April 14, 1 | 1987-04-14 |
Skimming weirs Grant 4,608,167 - Raubenheimer August 26, 1 | 1986-08-26 |
Wheeled suction cleaners Grant 4,560,418 - Raubenheimer December 24, 1 | 1985-12-24 |
Suction cleaners Grant 4,536,908 - Raubenheimer August 27, 1 | 1985-08-27 |
Random steering device for a submerged suction cleaning head Grant 4,521,933 - Raubenheimer June 11, 1 | 1985-06-11 |
Apparatus for cleaning submerged surfaces Grant 4,434,519 - Raubenheimer March 6, 1 | 1984-03-06 |
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