US Patent: 1,420,700


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Calipers

Patentee:

Alfred W. Hoffmann (exact or similar names) - New York, NY

USPTO Classifications:

Tool Categories:

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Unknown

Patent Pictures:

Description:

This patent covers a set of calipers that features both vernier-style and bow-style measurements driven from the same adjustment wheel.