Inventor
HOFFMANN HORST
DE17 patents
⚠️ This page may combine multiple inventors who share the name “HOFFMANN HORST”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
RUF KG WILHELM
4 patentsUS4771143ASep 13, 1988
Diaphragm keyboard
RUF KG WILHELM13 citations73
US4520228AMay 28, 1985
Multi-layer conductor plate and a method of making
RUF KG WILHELM13 citations73
US4440823AApr 3, 1984
Printed board for electrical circuits
RUF KG WILHELM17 citations73
US4575589AMar 11, 1986
Switching contact arrangement, in particular for keyboards and a keyboard
RUF KG WILHELM2 citations62