Inventor

WALTHER HANS J

3 patents

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

DRAEGERWERK AG

2 patents

US4136403AJan 30, 1979

Head guard assembly comprising a protective helmet and a protective breathing mask

DRAEGERWERK AG71 citations93

US4555815ADec 3, 1985

Protective helmet with releasably connected protective breathing mask

DRAEGERWERK AG51 citations88

FREUDENBERG CARL FA

1 patent

US4553761ANov 19, 1985

Seal

FREUDENBERG CARL FA33 citations86