The inventor has been forgotten, it was so long ago.
A steel rule is most commonly refered to as an engineers rule.
John deere invented the steel plow in 1837
Henry Bessemer invented a process to manufacture steel.
The term rule in this context is synonymous with ruler, a marked strip that can be used to measure length. A flexible steel rule is make of thin, flexible steel.
The steel converter was invented back in 1867 by Sander van Olst.
the steel drum was invented in trinidad.the steel drum was invented in trinidad.
A steel rule is most commonly refered to as an engineers rule.
John deere invented the steel plow in 1837
"National Steel Rule's website has information on Steel Rule. Fine-Tools and Helmold may also have information on Steel Rule. Wikipedia has info on general rulers, too."
Henry Bessemer invented a process to manufacture steel.
Tool steel.
Stainless steel was invented in Sheffield
The term rule in this context is synonymous with ruler, a marked strip that can be used to measure length. A flexible steel rule is make of thin, flexible steel.
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A ruler made of stainless steel.
John Deere invented the steel (all by himself)
The steel converter was invented back in 1867 by Sander van Olst.