Carl Oppedahl
Inside the TRS-80 Model 100
The phone book
2018 Redwood City PCT Seminar
AIPLA Twentieth Annual PCT Seminar
Oppedahl on PCT Forms and PCT Docketing
Patent Resources Group Institute for Paralegals
The Telephone Book
The United States Patent and Trademark Office's Guide for preparation of patent drawings / with a practitioner's comment on drawings for electronic filing by Carl Oppedahl of Oppedahl Patent Law Firm LLC ; with a practitioner's comment on drawings for des