Raub, Samuel. Petition of Samuel Raub, Jr., praying the passage of a law requiring the use of the "double-acting safety-valve" on board of steamboats, &c : January 30, 1830 ; referred to the Committee on Commerce.

Raub, Samuel.

Petition of Samuel Raub, Jr., praying the passage of a law requiring the use of the "double-acting safety-valve" on board of steamboats, &c : January 30, 1830 ; referred to the Committee on Commerce.

[Washington] : Blair & Rives, printers, [1839]

Includes a description of his patented safety valve for steam-boilers.

Steam-boilers -- Safety appliances.

Safety appliances.

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