Johnson Mfg. Inc. began in 1981. Gerald Johnson Sr., founder and inventor, began his manufacturing out of necessity. Through ingenuity and need, he created the farm implements that became Johnson Manufacturing Inc’s. HyGrade Pull Type Graders.
Johnson Mfg. Inc. began in 1981. Gerald Johnson Sr., founder and inventor, began his manufacturing out of necessity. Through ingenuity and need, he created the farm implements that became Johnson Manufacturing Inc’s. HyGrade Pull Type Graders.