Posted on Mar 10, 2016
These were the first 10 patents in U.S. history
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John Stone of Massachusetts may have saved workers hundreds of man-hours after he invented a pile driver for bridges, which he patented on March 10, 1791. We have come a Long Way !
John Stone of Massachusetts may have saved workers hundreds of man-hours after he invented a pile driver for bridges, which he patented on March 10, 1791. We have come a Long Way !
These were the first 10 patents in U.S. history
Posted from theweek.comPosted in these groups: 
TechnologyLanmark TechnologyUnited States Patent and Trademark Office
American History
TechnologyLanmark TechnologyUnited States Patent and Trademark Office American History
Posted 9 y ago
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