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US Patent: 654,222
Cap for measuring scales
Patentee:
Hans Bube (exact or similar names) - Hanover, Germany

USPTO Classifications:
33/490

Tool Categories:
rules : folding rules

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Otto W. Hellmiech
E. H. L. Mummenhoff
Patent Dates:
Applied: Jul. 19, 1898
Granted: Jul. 24, 1900

Patent Pictures:
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Description:
Matches patent date shown on a Keuffel & Esser zig zag rule. This is the only rule related patent issued on this date.

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