Inventor

ELSE RONALD

3 patents

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

POST OFFICE

2 patents

US4249043AFeb 3, 1981

Electret transducer backplate, electret transducer and method of making an electret transducer

POST OFFICE27 citations77

US4348711ASep 7, 1982

Method and apparatus for implanting a charge in an electret foil

POST OFFICE4 citations51

BRITISH TELECOMM

1 patent

US4696033ASep 22, 1987

One-piece telephone hook switch operating mechanism

BRITISH TELECOMM6 citations57