| 434 / | HD | EDUCATION AND DEMONSTRATION |
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| 365 |  | MEANS FOR DEMONSTRATING APPARATUS, PRODUCT, OR SURFACE CONFIGURATION, OR FOR DISPLAYING EDUCATION MATERIAL OR STUDENT'S WORK {37} |
| 366 | DF | .~> Means for simulating abnormal condition |
| 367 | DF | .~> Means for comparing characteristics of plural articles or materials |
| 368 | DF | .~> Superposed indicia bearing sheets, one depicting interior view |
| 369 | DF | .~> Means for displaying article at various stages of manufacture or treatment |
| 370 | DF | .~> Transparent means permitting interior view |
| 371 | DF | .~> Mirror for displaying something (e.g., apparel, hair style, etc.) as it would appear when associated with viewer |
| 372 | DF | .~> Aircraft, spacecraft, or component thereof |
| 373 | DF | .~> Land or water vehicle (e.g., automobile, boat, etc.) or component thereof {3} |
| 377 | DF | .~> Beauty aid or perfume |
| 378 | DF | .~> Burial means or grave maker |
| 379 | DF | .~> Demonstration or display of electrical apparatus or component {1} |
| 381 | DF | .~> Fluid filter |
| 382 | DF | .~> Household equipment {2} |
| 385 | DF | .~> Insulation |
| 386 | DF | .~> Jewelry or monogram |
| 387 | DF | .~> Lock or safe |
| 388 | DF | .~> Lubricant or lubrication |
| 389 | DF | .~> Mechanical power source (e.g., engine, windmill, etc.) |
| 390 | DF | .~> Mining |
| 391 | DF | .~> Pen or pencil |
| 392 | DF | .~> Sport equipment |
| 393 | DF | .~> Toy |
| 394 | DF | .~> Timepiece or component thereof |
| 395 | DF | .~> Wearing apparel {4} |
| 401 | DF | .~> Machine mechanism |
| 402 | DF | .~> Rotatable element having indicia or picture on perimeter thereof |
| 403 | DF | .~> Block or like manually manipulatable object having indicia or picture on face thereof, or three-dimensional form for demonstrating shape |
| 404 | DF | .~> Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
| 405 | DF | .~> Plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
| 406 | DF | .~> Jigsaw elements having indicia thereon |
| 407 | DF | .~> Manually manipulated pin or peg inserted into display board |
| 408 | DF | .~> Chalkboard or equivalent means having easily erasable surface {14} |
| 426 | DF | .~> Endless belt or reel-mounted strip having indicia thereon |
| 427 | DF | .~> Apertured mask placed over information bearing surface |
| 428 | DF | .~> Pictorial demonstration or display |
| 429 | DF | .~> Demonstration or display means combined with storage or collection means (e.g., receptacle, scoop, etc.) |
| 430 | DF | .~> Display panel, chart, or graph {1} |