Inventor

JOHNSON CARL J

US2 patents

⚠️ This page may combine multiple inventors who share the name “JOHNSON CARL J”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

AJAY ENTERPRISES CORP

1 patent

US4635928AJan 13, 1987

Adjustable speed control arrangement for motorized exercise treadmills

AJAY ENTERPRISES CORP146 citations94

JOHNSON RICHARD L

1 patent

US4542545ASep 24, 1985

Bathtub with footwell and entrance door

JOHNSON RICHARD L69 citations93