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US Patent: 4,866,319
Erasing machine
Patentee:
Mack W. Crutchfield (exact or similar names) - Dallas, TX

USPTO Classifications:
15/3.53, 200/61.85, 310/47, 310/89, 451/358

Tool Categories:
trade specific : draftsman

Assignees:
Rotex Co. - Dallas, TX

Manufacturer:
Rotex Mfg. Co. - Dallas, TX

Witnesses:
Unknown

Patent Dates:
Applied: Jul. 12, 1988
Granted: Sep. 12, 1989

Patent Pictures:
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward Jeff Joslin
Vintage Machinery entry for Rotex Co.

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