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The ornamental design for a fireplace heat exchange tubing device, substantially as shown. |
FIG. 1 is a perspective view of a fireplace heat exchange tubing device showing my new design;
FIG. 2 is a plan view thereof;
FIG. 3 is a side elevational view thereof;
FIG. 4 is an end elevational view thereof; and
FIG. 5 is an elevational view of the opposite end thereof.
The broken line disclosure of an air inlet fan and grille and an outlet grille in FIG. 1 is for illustrative purposes only and forms no part of the claimed design.
Patent | Priority | Assignee | Title |
D258609, | Jul 20 1978 | Seventy Seven Ltd. | Clothes dryer vent valve and filter housing |
D632131, | Aug 28 2009 | Premark FEG L.L.C.; PREMARK FEG L L C | Fryer heat exchange tube |
Patent | Priority | Assignee | Title |
4060196, | Apr 12 1976 | Heat extractor for stoves | |
4102320, | May 13 1977 | Fireplace heat exchanger | |
4103670, | Apr 18 1977 | Fireplace heat intensifier | |
4112914, | Jan 02 1975 | Combined fireplace hood and heating unit |
Executed on | Assignor | Assignee | Conveyance | Frame | Reel | Doc |
Aug 05 1980 | DIDONATO, RONALD | COLORADO CONCRETE MANUFACTURING COMPANY | ASSIGNMENT OF ASSIGNORS INTEREST | 003802 | /0572 |
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