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$2,000Pressure Sensitive Adhesives for Metals $10,000 Design and Development of Precicion Planting Equipment HEADHUNTING
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$10,000CITATION SEARCH Hueing Dyes for Fabrics $10,000 Water-Soluble Detergent Package |
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Acoustical InventionsSound pressure level adjusterLeft/right earpieces with a high quality microphone on the external surface, a hi-fi loudspeaker on the inside and an electronic level control, either physically placed on the ear piece or controlled via remote for sound level control.Rated: 58/100 (4 votes) voice identification of callerpre-recorded audio identification of a caller which is transmitted as ringtone when a wireless headphone connected to a cellphone. This enables the called party to identify the caller without needing to see the screen of the cellphone.Rated: 56/100 (12 votes) Notify me of New Entries on this PageYou can receive an email whenever a new invention for sale is added to this category. You can unsubscribe at any time. |
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