Patent
   D318917
Priority
Nov 21 1988
Filed
Nov 21 1988
Issued
Aug 06 1991
Expiry
Aug 06 2005
Assg.orig
Entity
unknown
14
5
n/a
The ornamental design for the distillation flask, as shown and described.

FIG. 1 is a front perspective view of a distillation flask showing my new design;

FIG. 2 is a rear perspective view thereof;

Karamian, Narbik A.

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Patent Priority Assignee Title
3870602,
4334028, Jan 02 1981 Flask
4770854, Feb 03 1986 Costar Corporation Laboratory flask
4976927, Mar 20 1989 KONTES ASSET MANAGEMENT INC Solvent storage flask
230775,
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