UNITED
STATES PATENT OFFICE.
ELIJAH McCOY, OF DETROIT,
MICHIGAN.
LUBRICATOR
FOR SLIDE VALVES.
SPECIFICATION
forming part of Letters Patent No. 363,529, dated May 24, 1887.
Application filed March 12, 1881. Serial No. 230,689 (No
model.)
See also:
- Today in Science History event description for day of patent issue, 24 May.
