| Patent |
Priority |
Assignee |
Title |
| 1016435, |
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| 1042711, |
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| 1601774, |
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| 1661553, |
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| 1703551, |
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| 1992238, |
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| 2081597, |
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| 2156890, |
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| 2164392, |
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| 2210030, |
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| 2219802, |
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| 2240005, |
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| 2276944, |
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| 2280751, |
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| 2533697, |
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| 2554238, |
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| 2624063, |
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| 2703905, |
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| 2785432, |
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| 2799040, |
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| 3029463, |
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| 3065491, |
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| 3072951, |
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| 3134128, |
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| 3169843, |
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| 3286368, |
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| 3324846, |
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| 3345672, |
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| 3375540, |
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| 3506747, |
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| 3619848, |
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| 3624668, |
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| 3689956, |
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| 3697771, |
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| 3708824, |
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| 3774261, |
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| 3780398, |
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| 3786531, |
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Mar 28 1973 |
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Suction port device for a vacuum cleaner |
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Aug 01 1974 |
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Cleaning nozzle |
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Apr 29 1974 |
COOPER INDUSTRIES, INC , A CORP OF DE |
Apparatus for treating floor coverings |
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Mar 08 1974 |
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Cleaning device |
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Sep 02 1976 |
International Business Machines Corporation |
Wet processing PH control |
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Dec 27 1976 |
Centaur Floor Machines Ltd. |
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Sep 25 1975 |
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Jan 27 1977 |
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