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US Patent: 100,656
Improvement in card-racks
Patentee:
Leverett Homer Olmsted (exact or similar names) - Brooklyn, NY

USPTO Classifications:
40/124

Tool Categories:

Assignees:
None

Manufacturer:
L. H. Olmsted - Brooklyn, NY

Witnesses:
P. Hyatt
T. Olmsted
Patent Dates:
Granted: Mar. 08, 1870

Patent Pictures:
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Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for L. H. Olmsted
Description:
The invention uses a helical wire spring to hold index cards between adjacent windings.

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