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Patents for Hugh E. Dierker
Patents 1 - 3 of 3
Number	Date	Patentee	Title	Type
2,796,099	Jun. 18, 1957	H.E. Dierker	Screw Holding Screwdriver	screwdriver blades
2,796,100	Jun. 18, 1957	H.E. Dierker	Screw Holding Screwdriver	screwdriver blades
2,884,971	May 05, 1959	H.E. Dierker	Screw holding screwdriver	screwdriver blades

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