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...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!

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Class 172/218 - Shiftable moldboard


Subclass of Class 172 - Earth working
Definition: Apparatus comprising an earth working means having one portion
No. of patents: 4
Last issue date: 04/21/1998


NumberTitleIssue Date
5740868Pressure control circuit for a combination of a reversible plough with a plurality of soil preparation devices coupled therewith
A combination of a reversible plough with a plurality of soil preparation devices including an improved height control system. The apparatus includes a headstock by means of which the combination can be mounted on lifting arms at the rear of a propelling ...
04/21/1998
5127480Reversible plow
A rotatable plow that includes a pair of oppositely disposed plow members carried on a plow carrier pivotally carried by a draft beam. The draft beam includes a plow carrier adjustment yoke for changing the angular orientation of the plow frame relative t...
07/07/1992
4409912Agronomic implement
A cultivating implement include a soil working tool having an elongate substantially planar blade. The blade extends sidewardly and downwardly at an acute angle to the vertical so that its plane is substantially parallel to the direction of movement throu...
10/18/1983
4036305Gang plow
A plurality of plow units are mounted to a main frame of a plow system for rotation about their vertical axes. The plow units are spaced at equal lateral increments and at uniformly increased distances from a pivot connection between the main frame and a ...
07/19/1977
 
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