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US Patent: 691,921
Expansion-bolt
Patentee:
Seth Wheeler (exact or similar names) - Albany, NY

USPTO Classifications:
411/26

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Edward B. Hawkins
C. F. Carrington

Patent Dates:
Applied: Mar. 30, 1901
Granted: Jan. 28, 1902

Patent Pictures:
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