Portable mandrel

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Description

FIG. 1 is a front perspective view of a portable mandrel showing my new design, taken from above;

FIG. 2 is a rear perspective view thereof, taken from below;

FIG. 3 is a bottom plan view.

Referenced Cited
U.S. Patent Documents
D235160 May 1975 Levin
979922 December 1910 Board
1050575 January 1913 Stryhal
Foreign Patent Documents
424624 May 1911 FRX
Patent History
Patent number: D254196
Type: Grant
Filed: Apr 24, 1978
Date of Patent: Feb 12, 1980
Inventor: Michael H. Shulman (Willowdale, Ontario)
Primary Examiner: Wallace R. Burke
Assistant Examiner: B. J. Bullock
Law Firm: Sim & McBurney
Application Number: 5/899,349
Classifications
Current U.S. Class: Turning, E.g., Lathe, Etc. (D15/130); D 8/71; Tool Or Work Holder (D15/140)
International Classification: D1509; D0805;