Core77
- Topics
- Features
- Awards
- Jobs
-
Firms
- Firms
- Search Firms;
- Firm Projects
- Forums
-
More...
- About Us
- Contact Us
- Advertise
- About
- Terms of Use
Industrial Designer Sergio Carpani's Revolution Pen from 1978
You make that a fountain pen and I'll buy 1 of every color!
Three-piece design for retractable rolling ball writer - with integral plastic spring - from 1991. https://patentscope.wipo.int/search/en/detail.jsf?docId=EP12155006&_cid=P12-KLA73Z-44056-6