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	Browse Inventions: Machine for Crushing Stone Machine for making flat bottom paper bags Magnetic Core Memory Pulse Transfer Controlling Device An Wang made many notable contributions to the advancement of computer . . . . Magnetic Core Memory Magnetic Core Memory Kenneth H. Olsen, described by . . . . Magnetic Disk Drive Magnetic Disk Drive Magnetic Recording Electromagnetic Talking Device; Electromagnetic Talking Machine Semi Joseph Begun was a pioneer of magnetic recording. He developed t . . . . Magnetic Recording Method and Means of Magnetic Recording Marvin Camras' inventions are used in modern magnetic tape and wire re . . . . Magnetic Resonance Imaging Magnetic Resonance Imaging Magnetron High Efficiency Magnetron Percy Spencer, while working for the Raytheon Company, discovered a mo . . . . Magnetron Asymmetrically Conductive Device and Method of Making the Same Robert Hall invented the version of the magnetron that operates most m . . . . Mason jar Matrix for Linotype-Machine Maxim gun; smokeless gunpowder Measuring instruments Mechanical Reaper Improvement in Machines for Reaping Small Grain Cyrus Hall McCormick invented the mechanical reaper, which combined al . . . . Method for Fabricating Transistors Method for Fabricating Transistors As a cofounder of both Fairchild Semiconductor and Intel, Gordon Moore . . . . Method of Making Insulated Gate Field Effect Transistor with Controlled Threshold Voltage Method of Making Insulated Gate Field Effect Transistor with Controlled Threshold Voltage John Macdougall is one of the inventors of the first commercially viab . . . . Method of Making Insulated Gate Field Effect Transistor with Controlled Threshold Voltage Method of Making Insulated Gate Field Effect Transistor with Controlled Threshold Voltage Kenneth Manchester is a pioneer in the development of ion implantation . . . . Method of Manufacturing Semiconductor Devices Method of Manufacturing Semiconductor Devices Early in 1959 while at Fairchild Semiconductor, Jean Hoerni invented t . . . . Method of producing a semiconductor element Method of producing a semiconductor element Gordon Teal began his career in 1930 concentrating on better vacuum tu . . . . Mobile Communication System Mobile Communication System Switching Concept for Cellular Phones Modern day fire hydrant Modern Photocopier Modern Photocopier Gundlach devoted over three decades to the task of transforming the ma . . . . Modern zipper Molecular Sieves Molecular Sieve Adsorbents In 1956, Edith Flanigen began working on the emerging technology of "m . . . . MRI Apparatus and Method for Detecting Cancer in Tissue Raymond Damadian invented the magnetic resonance imaging (MRI) scanner . . . . Multiplane Camera Multiplane Camera Seldom has an individual become so intrinsically linked to a concept a . . . .