Tony Christianson

📍 Manhattan Beach, CA: #2 of 39 inventorsTop 6%

🗺 California: #156 of 10,592 inventorsTop 2%

Overall (1989): #3,517 of 140,708Top 3%

Patents 1989

Issued Patents 1989

Showing 1–4 of 4 patents

Patent #	Title	Co-Inventors	Date
4879995	Snorkel for skin divers	—	1989-11-14
4877022	Skin diving snorkel	—	1989-10-31
4872453	Snorkel	—	1989-10-10
4862884	Regulator second stage for scuba	—	1989-09-05