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US Patent: 52,995
Improvement in locks
Patentees:
George A. Walker (exact or similar names) - Boston, MA
F. L. Walker (exact or similar names) - Boston, MA
Anson Hardy (exact or similar names) - Boston, MA

USPTO Classifications:
70/372, 70/409, 70/493

Tool Categories:
hardware : locks
transportation : canals : locks
household : door and window hardware

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
F. Gould
J. B. Crosby

Patent Dates:
Granted: Mar. 06, 1866
Antedated: Feb. 28, 1866

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for G. A. Walker Machine Co.

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