Patent
   D342006
Priority
Apr 24 1992
Filed
Apr 24 1992
Issued
Dec 07 1993
Expiry
Dec 07 2007
Assg.orig
Entity
unknown
2
7
n/a
The ornamental design for a ductwork clamp, as shown and described.

FIG. 1 is a perspective view of the ductwork clamp embodying the design of the present invention;

FIG. 2 is a front end elevational view thereof;

FIG. 3 is a rear end elevational view thereof;

FIG. 4 is a side elevational view thereof, the side opposite being a mirror image of the side shown in FIG. 4;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof.

Schrock, Steve, Fleetwood, Terry W.

Patent Priority Assignee Title
D723347, Jan 16 2014 Gregory S., Sundheim Manual clamp
D986046, Apr 19 2020 Clamp set for opposing sides of a portable toilet bottom
Patent Priority Assignee Title
2970798,
3861663,
4600174, Sep 16 1983 Legrand Duct mounting fixture for securing a duct on a support
4838584, Sep 24 1987 The United States of America as represented by the Secretary of the Air Quick disconnect duct coupler
4889299, Dec 27 1982 LEGRAND, A CORP OF FRENCH Duct mounting fixture for securing a duct on a support section
D286369, Jun 06 1983 Hahn Manufacturing Co. Clamp
D321633, Oct 18 1988 Anti-bite-off device for a wood moulder or the like
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