Matches 251 - 287 out of 287 < 1 2 3 4 5 6
Match Document Document Title
3601178 METHOD OF MAKING A WAX MODEL OF A RING WITH HOLLOW CROWN  
A hard, relatively insoluble wax form of jewelry such as a finger ring with hollow, framelike crowns is made by first making a metal model of the interior of the crown. A mold is made from the...
3570585 PATTERN FOR MAKING MOLD WITH A BACK DRAFT  
A composite metal and flexible material pattern for making a sand mold, and in which the flexible material is used in the back draft area to thereby permit the use of a single pattern which can be...
3561521 METHOD FOR CHANGING THE SIZE OF WAX RING PATTERNS  
A method for accurately changing the inside diameter of wax patterns for finger rings. A portion of the band of the wax pattern on each side of the sprue piece is removed and a bar of the desired...
3552480 PATTERN FOR MAKING A SAND MOLD WITH A BACK DRAFT  
A composite metal and flexible material pattern for making a heat cured sand mold, the flexible material being used in the area of back draft to permit the use of a one piece pattern which can be...
3472306 PROCESS FOR FORMING AN ARCUATE METAL PUNCH PLATE  
3461749 SYSTEM FOR DUPLICATING A MODEL TO PRODUCE A FOAM PLASTIC PATTERN  
3443627 METHOD OF MAKING A PATTERN SET-UP FOR USE IN INVESTMENT CASTING  
3426832 METHOD OF MAKING METAL PATTERNS AND CORE BOXES FOR SHELL MOLDING  
3426834 EXPENDABLE PATTERN FOR PRECISION INVESTMENT CASTING  
3379813 Process for forming arcuate rigid plastic plate  
3368244 Wax injection press  
3339620 Cavityless casting pattern and method of making same  
3277541 Photographic method of making a pattern for molding  
3273242 Dental crown and method of producing the same  
3271491 Method of preparing within a mold of rubber or of a material having similar properties shapes of wax or similar materials for use in the so-called lostwax-molding method  
3263286 Process and material for precision investment casting  
3259492 Thallium-zinc-lead-mercury alloys  
3257693 Method and pattern material for precision investment casting  
3228070 Method and apparatus for making lens patterns  
3226800 Method of making a metal embossing matrix such as an embossing roll  
3213496 Cooperating matched pattern plate and method  
3193893 Molding process  
3175259 Method of making pattern  
3141915 Method and device for making wax patterns  
3131999 Fusible salt pattern composition and process of making molds  
3095605 Vulcanizer press wax injectors for molds  
3085304 Method of and device for producing pressed models for dies to be cast  
3085895 Composite wooden foundry pattern  
3070991 Synthetic cores  
3065511 Method of making a pattern for a die  
3063113 Disposable pattern with lower melting external coating  
3033131 Mold and mold board construction for candy machines  
2905573 Method of gas plating  
2887392 Metal containing patterns and method of producing same  
2874456 Method of determining tube shapes  
2857641 Disposable mercury alloy pattern and method of making the same  
3562900 Title is not available  
Matches 251 - 287 out of 287 < 1 2 3 4 5 6