Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
Home › Swing-type mechanical pencil

Swing-type mechanical pencil

US Patent 5149219 · Granted Sep 22, 1992

Assignee

Inventors

View full patent text on Google Patents →

More Patents by These Inventors

Inspection system using machine learning to label image segments of defects2024
Production system, control method, and information storage medium2024
Production system, recovery system, production method, and information storage m2023
Production system, data transmission method, and information storage medium2023
Information collection system for industrial equipment, control apparatus for in2023
Substrate fixing device2022
Data collection system, data collection method, and information storage medium2022
Image forming apparatus with effective measure for restoring image quality2021
Seat cover and vehicle seat2020
Seat cover, seat cover manufacturing method, and vehicle seat2020
Vehicle seat2019
Control apparatus, image forming apparatus, and non-transitory computer readable2019