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US Patent: 568,192
Key Seat Rule
Patentee:
Frank Cramblitt - Baltimore, MD

USPTO Classifications:
33/489

Tool Categories:
rules : rule attachments

Assignees:
None

Manufacturer:
Not known to have been produced

Witnesses:
Lee I. Van Horn
Charles B. Mann, Jr.

Patent Dates:
Applied: Jul. 03, 1896
Granted: Sep. 22, 1896

Patent Pictures:
USPTO pdf tiff
Google Patents
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Description:
Charles B. Mann - patent attorney

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