Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Entrance control device for sequential displacement of a plurality of barriers

Entrance control device for sequential displacement of a plurality of barriers

US Patent 6185867 · Granted Feb 13, 2001

Assignee

No assignee recorded.

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Multi-variable model for identifying crop response zones in a field2006
Damped one-way self-closing gate1997
Safety turnstile1997