Inventor

LEVY LEONARD R

3 patents

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

DUTKEWYCH OLEH B

2 patents

US4144119AMar 13, 1979

Etchant and process

DUTKEWYCH OLEH B39 citations89

US4130454ADec 19, 1978

Etchant and process of etching with the same

DUTKEWYCH OLEH B39 citations89

SHIPLEY CO

1 patent

US4511403AApr 16, 1985

Immersion tin composition and process for using

SHIPLEY CO11 citations71