Inventor

KOERBER MARVIN A

4 patents

Patents

4 patents

US4304266ADec 8, 1981

Smooth bore flexible hose

AUTOMATION IND INC86 citations94

US4196755AApr 8, 1980

Reinforced flexible duct with integral molded liner

AUTOMATION IND INC79 citations94

US4224463ASep 23, 1980

Dual wire hose

AUTOMATION IND INC33 citations91

US4277640AJul 7, 1981

Electric current-carrying hose assembly having end fittings enclosing an electrical switch and/or a circuit-breaking device

AUTOMATION IND INC22 citations79