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SHANDONG HUATENG ENVIRONMENTAL PROTECTION AUTOMATION CO., LTD.
| SHANDONG HUATENG ENVIRONMENTAL PROTECTION AUTOMATION CO., LTD. Patent applications | ||
| Patent application number | Title | Published |
|---|---|---|
| 20110252554 | VACUUM-AIDED TOILET - A vacuum-aided toilet comprises a toilet bowl, a deodorization pipeline, a flushing pipeline, a sensing switch ( | 10-20-2011 |