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Matches 1 - 44 out of 44
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5147512 Separation of ketone isomers by extractive distillation  
The higher boiling ketone isomers are difficult to separate one from another by conventional distillation or rectification because of the close proximity of their boiling points. Ketone isomers can...
1908830 Holder for article to be electroplated  
1862740 Production of molded articles  
1836066 Electroplating apparatus  
1829856 Dynamo-electric machine  
1744534 Production of molded articles  
1744533 Mounting for diaphragms of sound boxes  
1740079 Extraction of rubber from plants  
1723609 Apparatus for producing storage-battery electrode elements  
1711265 Phonograph reproducer  
1708692 Phonograph  
1702935 Receiving apparatus for radio and telephone circuits  
1690159 Method of producing sound-record tablets  
1678246 Production of alkali-metal compounds from silicates containing them  
1651196 Storage battery  
1649579 Storage-battery electrode element and production thereof  
1644670 Cabinet  
1600722 Mounting for diamonds and the like  
1599121 Production of depolarizing agent for voltaic battery  
1583783 Centrifugal speed governor  
1559562 Storage battery  
1546573 Production of disk phonograph records  
1526326 Storage battery  
1495580 Method of producing chlorinated rubber  
1492023 Sound record  
1489240 Voltaic battery and the production of electrode elements therefor  
1488481 Regeneration of storage-battery elements  
1488480 Regeneration of alkaline storage-battery elements  
1456687 Stylus mounting  
1425458 Stylus mounting  
1425184 Production of thin metal sheets or foils  
1425183 Transmitter  
1417464 Production of thin metal sheets or foils  
1417463 Mold  
1410391 Protective coating for steel and iron  
1386095 Electrode element for galvanic batteries and method of producing same  
1379089 Production of thin metallic sheets or foils  
1377194 Storage battery  
1377192 Production of molded articles  
1371414 Nickel-plating  
1369271 Cleaning of metallic surfaces  
1364359 Protecting-varnish for electrodes of electrolytic cells  
1359972 Electroplating  
1342326 Composition of matter for sound-records or the like and process of making the same  

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