Inventor
GEBREWOLD YONAS
US9 patents
⚠️ This page may combine multiple inventors who share the name “GEBREWOLD YONAS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
3M INNOVATIVE PROPERTIES CO
3 patentsUS8342180B2Jan 1, 2013
Filtering face-piece respirator that has expandable mask body
3M INNOVATIVE PROPERTIES CO42 citations93
USD646380SOct 4, 2011
Grey respiratory mask having black lines of demarcation
3M INNOVATIVE PROPERTIES CO21 citations91
US8375951B2Feb 19, 2013
Buckle and respirator using such buckle, having a deformable cinch bar, and method
3M INNOVATIVE PROPERTIES CO0 citations49