Co-inventor, with his brother, William Wheeler Hubbell:
- U.S. Patent 19,776 on March 30, 1858 for a "Railroad-Car Wheel"
- U.S. Patent 150,576 on May 5, 1874 for "Improvement in Processes of Purifying and Strengthening Iron in a Molten Condition for Casting"
Richard was Superintendent of "Jackson Steel Works" in Allegheny City, Pennsylvania.
Source of death information: Death Certificate Photocopy (He died at 326 Franklin Street. Buried on February 18, 1919.)
- U.S. Patent 19,776 on March 30, 1858 for a "Railroad-Car Wheel"
- U.S. Patent 150,576 on May 5, 1874 for "Improvement in Processes of Purifying and Strengthening Iron in a Molten Condition for Casting"
Richard was Superintendent of "Jackson Steel Works" in Allegheny City, Pennsylvania.
Source of death information: Death Certificate Photocopy (He died at 326 Franklin Street. Buried on February 18, 1919.)
Co-inventor, with his brother, William Wheeler Hubbell:
- U.S. Patent 19,776 on March 30, 1858 for a "Railroad-Car Wheel"
- U.S. Patent 150,576 on May 5, 1874 for "Improvement in Processes of Purifying and Strengthening Iron in a Molten Condition for Casting"
Richard was Superintendent of "Jackson Steel Works" in Allegheny City, Pennsylvania.
Source of death information: Death Certificate Photocopy (He died at 326 Franklin Street. Buried on February 18, 1919.)
- U.S. Patent 19,776 on March 30, 1858 for a "Railroad-Car Wheel"
- U.S. Patent 150,576 on May 5, 1874 for "Improvement in Processes of Purifying and Strengthening Iron in a Molten Condition for Casting"
Richard was Superintendent of "Jackson Steel Works" in Allegheny City, Pennsylvania.
Source of death information: Death Certificate Photocopy (He died at 326 Franklin Street. Buried on February 18, 1919.)
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