|
US4126131A
|
|
Facemask and goggle combination for excluding smoke or noxious gases from the goggles
|
|
US4075714A
|
|
Helmet characterized by negative lift
|
|
US4075715A
|
|
Helmet having anti-lift device
|
|
US4059322A
|
|
Dust protective assembly for breakaway connectors
|
|
US4026245A
|
|
Personal restraint device
|
|
US3918098A
|
|
Threaded earcup suspension system
|
|
US3910269A
|
|
Integrated helmet and mask structure
|
|
US3833935A
|
|
Integrated helmet and mask structure
|
|
US3648389A
|
|
Synthetic thorax
|
|
US3631540A
|
|
Visor-latching device
|
|
US3593338A
|
|
Visor-latching construction in safety helmet
|
|
US3599635A
|
|
Hanging quick donning mask suspension
|
|
US3527242A
|
|
Three-phase mono-diaphragm breathing valve
|
|
US3503394A
|
|
Modulized passenger mask assembly
|
|
US3501772A
|
|
Sporting safety helmet
|
|
US3503645A
|
|
Magnetic retriever
|
|
US3540443A
|
|
Accumulator-rebreather and stowage bag combination
|
|
US3459216A
|
|
Pressure compensated exhalation valve
|
|
IL27692A
|
|
Dual visor helmet
|
|
US3487470A
|
|
Side track dual visor helmet
|
