FL

Frederick L. Lau

SW Switchcraft: 5 patents #1 of 3Top 35%
📍 Skokie, IL: #2 of 36 inventorsTop 6%
🗺 Illinois: #34 of 3,813 inventorsTop 1%
Overall (1989): #2,965 of 140,708Top 3%
5
Patents 1989

Issued Patents 1989

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
4874317 Jackfield with front terminals 1989-10-17
4826439 Self-latching lamp jack 1989-05-02
4826455 Terminal contact assembly Arnold A. Case, Emma Basov 1989-05-02
4820200 Slab-like jack module 1989-04-11
4797114 Jack circuit board assembly 1989-01-10