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US Patent: 808,975
Friction-clutch
Patentee:
Hermann G. Dittbenner - Minneapolis, MN

USPTO Classifications:
192/70.16, 192/70.3, 192/99A

Tool Categories:
metalworking machines : metalworking machine mechanisms : metalworking power transmission
industrial machines : industrial machine mechanisms : industrial machine clutches

Assignees:
Diamond Iron Works - Minneapolis, MN

Manufacturer:
Diamond Iron Works - Minneapolis, MN

Witnesses:
C. Macnamara
Richard Paul

Patent Dates:
Applied: Aug. 29, 1904
Granted: Jan. 02, 1906

Patent Pictures:
USPTO pdf tiff
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"Vintage Machinery" entry for Diamond Iron Works
Description:
Improvement to patent 482,326.

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