Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Helmet assembly for accurately positioning visual display system

Helmet assembly for accurately positioning visual display system

US Patent 4231117 · Granted Nov 4, 1980

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Earseal for sound-attenuating earcup assembly1991
Energy-absorbing earcup assembly1990
Combination chinstrap-napestrap assembly for helmet1989
Dual-visor assembly for helmet1989
Spring device for earcup assemblies of protective helmet1988
Protective helmet1988
Earphone system for use in large-cavity earcups1985
Method of making an individually fitted helmet1981
Individually fitted helmet and method of and apparatus for making the same1980