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US Patent: 27,179
Improvement in Marking Gages for Sewing Machines
Patentee:
Calvin D. Wheeler - New York, NY

USPTO Classifications:
112/131

Tool Categories:
layout tools : special purpose gauges
rules

Assignees:
None

Manufacturer:
C. D. Wheeler - New York, NY

Witnesses:
Cas. Durgin
D. G. Rowlands

Patent Dates:
Granted: Feb. 14, 1860

Patent Pictures: [ 1 | 2 ]
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Description:
Combination of a sliding rule with a spring point that is used for measuring and marking material for folding as well as to facilitate the operation of guiding the folds through the sewing machine.

Known example marked: C. D. WHEELER/PATENTED FEB 14/1860

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