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Inventor
HOCHSTUHL ERWIN
DE
2 patents
⚠️ This page may combine multiple inventors who share the name “HOCHSTUHL ERWIN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GALLENSCHUETZ E METALLBAU
1 patent
US5146711A
Sep 15, 1992
Security revolving door
GALLENSCHUETZ E METALLBAU
27 citations
86
SIEMENS BUILDING TECH AG
1 patent
US7000635B2
Feb 21, 2006
Double valve
SIEMENS BUILDING TECH AG
38 citations
85