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US Patent: 628,853
Steel Square
Patentee:
Joseph B. Robichan (exact or similar names) - Beverly, MA

USPTO Classifications:
403/380

Tool Categories:
layout tools : squares : carpenter squares

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
W. E. Allen
Henry H. Byrne
Mary E. Mooney
Dennis W. Quill
Patent Dates:
Applied: Dec. 12, 1896
Granted: Jul. 11, 1899

Patent Pictures:
Joseph B. Robichan patent July 11, 1899
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Description:
A "take-down" design using a springing "T" shaped latch to hold the parts together.

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