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US Patent: 1,278,706
Lock for Grease Caps
Patentees:
Albert William Martin (exact or similar names) - Indianapolis, IN
Jacob N. Martin (exact or similar names) - Indianapolis, IN

USPTO Classifications:
184/48.1

Tool Categories:

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
none listed
Patent Dates:
Applied: Apr. 22, 1918
Granted: Sep. 10, 1918

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