Gas producers and the Bildt automatic feed device (patented) :
gas fuel and the application of producer gas to manufacturing purposes /
sole makers, R.D. Wood & Co., engineers, iron founders, machinists, Philadelphia, Pa.

APA Citation

R.D. Wood & Company. (1906). Gas producers and the Bildt automatic feed device (patented): gas fuel and the application of producer gas to manufacturing purposes. Philadelphia, Pa.: The Company.

MLA Citation

R.D. Wood & Company. Gas Producers And the Bildt Automatic Feed Device (patented): Gas Fuel And the Application of Producer Gas to Manufacturing Purposes. Philadelphia, Pa.: The Company, 1906.

Warning: These citations may not always be complete (especially for serials).