| Application number | Title of the application | Filing Date | Status |
|---|
| 07/444265 | VACUUM CLEANER WITH FUNCTION TO ADJUST SENSITIVITY OF DUST SENSOR | Nov 30, 1989 | Abandoned |
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| 07/432008 | VACUUM CLEANER WITH DEVICE FOR ADJUSTING SENSITIVITY OF DUST SENSOR | Nov 5, 1989 | Abandoned |
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| 07/425334 | DEBRIS/LITTER COLLECTING APPARATUS AND METHOD OF USING SAME | Oct 22, 1989 | Abandoned |
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| 07/421984 | TOOTHBRUSH | Oct 15, 1989 | Abandoned |
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Array
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[id] => 2880271
[patent_doc_number] => 05209563
[patent_country] => US
[patent_kind] => NA
[patent_issue_date] => 1993-05-11
[patent_title] => 'Dust return system'
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| 07/413945 | PULSE DAMPENER AND METHOD AND APPARATUS FOR MAKING SAME | Sep 27, 1989 | Abandoned |
Array
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