| HOMOCARB Aerotronic Associates, Inc 159973 12 May 1960 | Removed - Not renewed: Renewal fee not paid | Electric furnaces and ovens, electric heat-treating furnaces and ovens... Class 011 Class 011 Environmental Control Instrument Products lighting heating cooling cooking Electric furnaces and ovens, electric heat-treating furnaces and ovens, and reagent-treating retorts, for caseforming carburization and for prevention of decarburization of ferrous metals, steels, and alloys; and for parts and accessories of and for the aforesaid furnaces, ovens and retorts, | |
