Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Digging and propulsion unit for a trenching apparatus

Digging and propulsion unit for a trenching apparatus

US Patent 5228222 · Granted Jul 20, 1993

Estimated economic value: $716,000 ⓘ

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Apparatus for adjusting tension and positioning of a harrowing chain2014
Apparatus for adjusting tension and positioning of a harrowing chain2014
Apparatus and method for adjusting tension of a harrowing chain2011
Apparatus and method for adjusting tension of a harrowing chain2011
Levee harrow2010
Tilting furniture2010
Tilting bed2010
Method and apparatus for digging trenches1993
Trenching apparatus1993