U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!

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Class 177/75 - Sequential latch release

Subclass of Class 177 - Weighing scales
Definition: Apparatus having a plurality of latches released in sequence.
No. of patents: 0