Patents Assigned to M. C. Canfield Sons
  • High-speed solder compositions
    Patent number: 4937045
    Abstract: A solder composition for use in high-speed hand-soldering of art work or other artifacts consisting essentially of from about 51% to about 56% by weight tin, from about a trace to about 1.0% by weight antimony, and the balance being substantially lead.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: June 26, 1990
    Assignee: M. C. Canfield Sons
    Inventor: Robert M. Silverman