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Patents for Algot T. Johnson
Patents 1 - 3 of 3
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
1,512,176Oct. 21, 1924A.T. JohnsonRatcheting Screwdriver
2,378,775Jun. 19, 1945A.T. JohnsonScrew Driver
3,114,401Dec. 17, 1963A.T. JohnsonHand Tools of the Nature of Screwdrivers, Socket Wrenches and the Like
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