US Patent: 1,438,234 - Joint for Zig-Zag Folding Rules


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US Patent: 1,438,234

Folding Rule
Joint for Zig-Zag Folding Rules

Patentees:

Walter H. Hart (exact or similar names) - New Britain, CT

David Gould (exact or similar names) - New Britain, CT

USPTO Classifications:

33/458, 33/495, 403/101

Tool Categories:

rules : folding rules : folding rule joints

Assignees:

The Stanley Works - New Britain, CT

Manufacturer:

The Stanley Works - New Britain, CT

Witnesses:

Unknown

Patent Dates:
Applied:	Sep. 12, 1921
Granted:	Dec. 12, 1922

Patent Pictures:

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Description:

One of three folding rule joint patents issued to Stanley on this date (see also 1,438,235 and 1,438,236). This patent date is marked on some zig-zag rules, but it is not clear exactly which patent(s) are used since the three patents are all very similar.