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US Patent: 1,442,234
Tool Holder
Patentee:
Frank H. Petersen (exact or similar names) - Denver, Denver County, CO

USPTO Classifications:
279/103, 408/239R

Tool Categories:
metalworking machines : drilling and boring : drilling and boring tool holders

Assignees:
Frank H. Petersen - Denver, Denver County, CO
Alfred L. Weston - Denver, Denver County, CO

Manufacturer:
Not known to have been produced

Witnesses:
Unknown
Patent Dates:
Applied: Jan. 19, 1921
Granted: Jan. 16, 1923

Patent Pictures:
USPTO (New site tip)
Google Patents
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