CompanyQ3009498· pop 10· linked from 521 articlesMSA SafetySign in to savemanufacturing company in PennsylvaniaCompanyMSA, MNESPIndustryOrthopedic, Prosthetic & Surgical Appliances & SuppliesExchangeNYSE, OTCLatest filingSD · 2026-05-28via SEC EDGARConnectionsrebreatherEntityhard hatEntityCategories1914 establishments in PennsylvaniaCompanies based in Butler County, PennsylvaniaCompanies in the S&P 400Companies listed on the New York Stock ExchangeIndustrial breathing setsManufacturing companies based in PennsylvaniaManufacturing companies established in 1914Mine safetyRebreather makers