Rulers also known as rules began as an attempt to standardize measurements based on the human anatomy such as the foot and the hand.
Rolling ruler commercial.
They did show this during the early 90s.
Calculated industries 6540 wheel master pro 12 commercial grade feet inch distance measuring wheel.
Us based innovators hozo design c o.
Pen geometry set with 6 inch swing arm protractor divider set squares ruler compasses and protractor 15 piece set.
By the 17th century rulers were marked in inches with smaller fractional lengths coming later.
Daminmancejin posted 14 years 2 months ago.
Have launched an indiegogo campaign for the first compact digital rolling ruler the rollova seeks to replace traditional measuring tapes with a.
Free carrying pack 4 4 out of 5 stars 180 76 84 76.