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searching for Jerome H. Lemelson 1 found (27 total)

N95 respirator (5,103 words) [view diff] exact match in snippet view article find links to article

issued 1989-07-25, assigned to Moldex Metric Inc US patent 4856509, Jerome H. Lemelson, "Face mask and method", published 1989-08-15, issued 1989-08-15