Membership
Tour
Register
Log in
Mark Ritchie
Follow
Person
Downsview, Ontario, CA
People
Overview
Industries
Organizations
People
Information
Impact
Patents Grants
last 30 patents
Information
Patent Grant
Self-locking safety pin
Patent number
5,095,589
Issue date
Mar 17, 1992
Frances Ritchie
A44 - HABERDASHERY JEWELLERY