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CLASS D13,	EQUIPMENT FOR PRODUCTION, DISTRIBUTION, OR TRANSFORMATION OF ENERGY
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SECTION I - CLASS DEFINITION

This class provides for design patents claiming ornamental designs for:

1. Solid Fuel

2. Energy Conservation or Transformation

3. Distribution, Modification, or Control

4. Magnet

5. Casing or Enclosure Not Elsewhere Specified

6. Miscellaneous

SECTION II - REFERENCES TO OTHER CLASSES

SEE OR SEARCH CLASS:

SUBCLASSES

100	SOLID FUEL:
	This subclass is indented under the class definition.  Design for material for burning or consumption for the production of energy. (1) Note. Includes ceramic briquette. SEE OR SEARCH THIS CLASS, SUBCLASS: 103 through 106, for battery. SEE OR SEARCH CLASS: 44,  Fuel and Related Compositions,   subclasses 530 through 535for fuel product or defined shape or structure. D7,  Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified,   subclass 324 for solar collection-type cooking oven. D23,  Environmental Heating and Cooling; Fluid Handling and Sanitary Equipment,   subclass 417 for electric heating element.

101	ENERGY CONVERSION OR TRANSFORMATION:
	This subclass is indented under the class definition.  Design for power source or device that alters the form or quality of power. (1) Note. Includes maser or laser. (2) Note. Includes transducer. SEE OR SEARCH CLASS: D7,  Equipment for Preparing or Serving Food or Drink Not Elsewhere Specified,   subclass 324 for solar warming or cooking oven. D10,  Measuring, Testing, or Signalling Instruments,   subclass 77 for battery tester; subclass 105 for lightening conductor or arrestor. D15,  Machines Not Elsewhere Specified,   subclasses 1 through 5for internal combustion engine or steam engine. D23,  Environmental Heating and Cooling; Fluid Handling and Sanitary Equipment,   subclass 417 for electric heating element. D25,  Building Units and Construction Elements,   subclasses 126 through 135for post or transmission tower.

123	DISTRIBUTION MODIFICATION OR CONTROL:
	This subclass is indented under the class definition.  Design for means of transmitting or distributing energy from one point to another. SEE OR SEARCH THIS CLASS, SUBCLASS: 162, for control panel or console with specific manual control element. 162 through 164, for programmable controller. SEE OR SEARCH CLASS: D8,  Tools and Hardware,   subclasses 350 through 353for cover plate for receptacle, junction box or wall switch; subclasses 354-360.1 for cable support or mounting for conduit; subclass 364 for standoff support for electric line insulator. D10,  Measuring, Testing, or Signalling Instruments,   subclass 77 for battery tester; subclass 105 for lightening conductor or arrestor; subclass 106 for remote controls specific to security systems. D14,  Recording, Communication, or Information Retrieval Equipment,   subclass 218 for remote control unit for audio or video component; subclasses 240-256 for element or attachment for telephone equipment; subclass 256 for telephone connector; subclasses 388-420 for computer interface or control; subclass 433 for computer connector or coupler; subclasses 435-438 for cartridge, chip, or card. D21,  Games, Toys, and Sports Goods,   subclass 332 for console for video game; subclass 556 for toy remote control or transformer for toy vehicle.

183	MAGNET:
	This subclass is indented under the class definition.  Design for object that attracts or repels metal by force of a magnetic field. (1) Note. Includes magnetizer or demagnetizer. SEE OR SEARCH CLASS: D8,  Tools and Hardware,   subclasses 382 through 399for fastener or coupling. D21,  Games, Toys, and Sports Goods,   subclass 404 for magnetic-type toy. D34,  Material or Article Handling Equipment,   subclass 35 for lifting magnet specific to crane or hoist.

184	CASING OR ENCLOSURE NOT ELSEWHERE SPECIFIED:
	This subclass is indented under the class definition.  Design for housing or covering not elsewhere specified. SEE OR SEARCH CLASS: D8,  Tools and Hardware,   subclasses 350 through 353for cover plate for receptacle, junction box, or wall switch.

199	MISCELLANEOUS:
	This subclass is indented under the class definition.  Design relating to the production, distribution, or transformation of energy not elsewhere provided for. (1) Note. Includes electrode not elsewhere specified

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