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US Patent: 7,416
Board and Log Rule
Patentee:
Charles B. Hutchinson - Waterloo, NY

USPTO Classifications:
33/761

Tool Categories:
rules : lumber rules
rules : tape measures

Assignees:
None

Manufacturer:
William Knox - Waterloo, NY

Witnesses:
Sterling G. Hadley
Wm. Knox

Patent Dates:
Granted: Jun. 04, 1850

Patent Pictures:
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Description:
Measures both boards and logs. Tape is 48" long. Board feet is shown on the inner plate after measuring the width. Log measurement features gives a number of values: square size (trimmed to square); cubical contents; number of board feet; number of cut shingles; number of cut staves.

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