Ashton Valve Company

• Important notice concerning the recent safety-valve cases, from the Ashton Valve Company, Boston, Mass
• The Ashton improved muffler pop safety valve
• The Ashton noiseless locomotive blow-back safety valve ... the Ashton "Pop" safety valve for stationary, portable, and farm engines ... the Ashton water relief valve ... the Ashton marine "Pop" safety valve
• The Ashton Valve Co., established 1871 ...
• The Ashton Valve Company