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Inventor
SZASZ RICHARD DEVIN
CA
2 patents
Patents
2 patents
USD848075S
May 7, 2019
Face mask shell
CANADA PROSPER APPAREL LTD
21 citations
90
US11241594B2
Feb 8, 2022
Face mask for filtering air and air monitoring system
CANADA PROSPER APPAREL LTD
17 citations
78