US Patent: 411,681 - Crane


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US Patent: 411,681

Crane

Patentee:

William H. Ridgway (exact or similar names) - Coatesville, PA

USPTO Classifications:

186/5, 212/203, 212/225, 212/75, 40/1

Tool Categories:

material handling : cranes : jib cranes

Assignees:

None

Manufacturer:

Craig Ridgway & Son Co. - Coatesville, PA

Witnesses:

Horace G. Emery

Patent Dates:
Applied:	May 18, 1889
Granted:	Sep. 24, 1889

Patent Pictures:

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Vintage Machinery entry for Craig Ridgway & Son Co.

Description:

Improvements to patent 374,756.

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