Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › High pressure water jet mining machine

High pressure water jet mining machine

US Patent 4265487 · Granted May 5, 1981

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

High pressure fluid jet cutting and drilling apparatus1983
Method and apparatus for drilling horizontal holes in geological structures from1982
Water jet cutting nozzle transition section1980