
TODAY’S PATENT – BLACKBOARD ERASER
Oliver R. Odhner received his patent for the invention, “Blackboard eraser” (US4007509A), by the USPTO on 14th February 1977. The present invention relates to an improved eraser fo…
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Oliver R. Odhner received his patent for the invention, “Blackboard eraser” (US4007509A), by the USPTO on 14th February 1977. The present invention relates to an improved eraser fo…
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Waterbeds refer to Beds and Mattress filled with water and the outer part is supported by a rigid structure and frame affixed to cushion. Inventions apropos Waterbeds have increase…
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Artificial nests for bees are portable units that facilitate as an Artificial nest for desired wild bees. These devices have grooves on one side whereas the other side is covered b…
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Carpet Cleaning Systems are adaptive and enhanced vacuum cleaners whose main function is to clean carpets thoroughly. These devices can operate vacuum cleaning and liquid cleaning…
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Vehicle washing apparatus is an apparatus that comprises an array of plural downwardly depending fabric panels. “Vehicle washing apparatus with improved washing elements” (US456762…
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It is well-known, that the configuration of an inadequate sleeping surface and the distribution of body weight vary in such a way that it causes irregularity of sleep or body aches…
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