Last seen in:
- Universal - Jul 19 2022
- New York Times - Jun 14 2022
- L.A. Times Daily - Jan 23 2022
- The Washington Post - Jan 23 2022
- Family Time - Oct 10 2021
- Newsday.com - Mar 7 2021
- Thomas Joseph - King Feature Syndicate - Mar 30 2020
- Eugene Sheffer - King Feature Syndicate - Jan 18 2018
- Newsday.com - Apr 19 2016
- Newsday.com - Apr 20 2015
Related Clues:
- Kind of examiner 56-Across was
- Edison accomplishment, frequently
- Inventor's insurance
- Gadgeteer's acquisition
- Preventers of many thefts
- Edison held hundreds of them
- My grandfather registered one for a voltage regulator circuit
- Trademark cousins
- Edison's 1,000+
- Invention papers
- Invention protection
- It protects an invention
- The invention protection is obvious
- Obvious, unconcealed
- The right to an invention is clear