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US Patent: 917,312
Friction clutch mechanism
Patentee:
Emil R. Klemm (exact or similar names) - Chicago, IL

USPTO Classifications:
180/6.2, 192/48.8, 192/89.21, 192/93R, 254/124

Tool Categories:
metalworking machines : grinders : sharpening machines : bench or pedestal grinders

Assignees:
None

Manufacturer:
E. R. Klemm - Chicago, IL

Witnesses:
Burton U. Hills
Charles I. Cobb

Patent Dates:
Applied: Dec. 16, 1907
Granted: Apr. 06, 1909

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

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