Inventor

ETHERIDGE CHARLES H

US2 patents

⚠️ This page may combine multiple inventors who share the name “ETHERIDGE CHARLES H”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

(unassigned)

1 patent

US6092992AJul 25, 2000

System and method for pump control and fault detection

128 citations92

MINE SAFETY APPLIANCES CO

1 patent

US5370004ADec 6, 1994

Multiple port personal air sampling apparatus

MINE SAFETY APPLIANCES CO13 citations71