Henry M. Robbins, Jr.

MC Mine Safety Appliances Company: 1 patents #104 of 243Top 45%

📍 Pittsburgh, PA: #4,559 of 7,570 inventorsTop 65%

🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%

Overall (All Time): #4,064,098 of 4,157,543Top 100%

Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #	Title	Co-Inventors	Date
4312003	Ferrite antenna	—	1982-01-19