...that two musicians were responsible for the invention of color print film? Fascinated by photography, Leopold Godowsky and Leopold Mannes worked together to produce an easy-to-use, practical color film. They worked full time as music teachers and gave concerts while experimenting during their off hours in Mannes' kitchen. Their success earned them full-time, well-paying jobs at Kodak and their efforts resulted in Kodachrome film, which was introduced in 1935.
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| Number | Title | Issue Date |
| 5007908 | Electrosurgical instrument having needle cutting electrode and spot-coag electrode An electrosurgical instrument for use in combination with an endoscope for cutting tissue and cauterizing/coagulating the resulting wound area is described. The instrument comprises an elongated flexible tubular member having a proximal end, a distal end,... | 04/16/1991 |
| 4976711 | Ablation catheter with selectively deployable electrodes A RF ablation catheter for removing athero-stenotic lesions or modifying the tissue characteristics of the interior walls of selected blood vessels is described. The catheter is characterized in having a tip member which during the initial placement of th... | 12/11/1990 |
| 4958539 | Method of making an electrosurgical spatula blade A surgical cutting blade for use in an electrosurgical scalpel includes a thin flat ceramic substrate having a rounded tip where the edge portion of the substrate on the opposed major surfaces thereof are beveled. A pattern of metallization is provided on... | 09/25/1990 |
| 4936281 | Ultrasonically enhanced RF ablation catheter An electrosurgical angioplasty catheter with ultrasonic enhancement is described. It comprises an elongated, flexible plastic tubular body having located at its distal tip an electrode structure for effecting rf cutting along with a transducer for ultraso... | 06/26/1990 |
| 4922903 | Handle for electro-surgical blade An electro-surgical implement with an improved handle having a cutting mode of operation and a coagulating mode of operation. The implement includes a blade member having an electrically conductive pad area, and a predetermined pattern of electrical condu... | 05/08/1990 |
| 4905691 | Polypectome snare with bipolar electrodes A polypectome snare whose loop comprises a pair of electrodes mechanically joined but electrically insulated from one another at their distal ends and adapted to be energized by a source of RF voltage for excising polyps on the inside of a body cavity is ... | 03/06/1990 |
| 4903696 | Electrosurgical generator An electrosurgical generator for driving one or more separate electrosurgical implements, e.g., an electrosurgical scalpel and an electrosurgical forceps, over separate output channels. Bipolar electrodes on the scalpel blade are energized by a radio freq... | 02/27/1990 |
| 4862890 | Electrosurgical spatula blade with ceramic substrate A surgical cutting blade for use in an electrosurgical scalpel includes a thin flat ceramic substrate having a rounded tip where the edge portion of the substrate on the opposed major surfaces thereof are beveled. A pattern of metallization is provided on... | 09/05/1989 |
| 4850353 | Silicon nitride electrosurgical blade An electrosurgical blade having a silicon nitride ceramic substrate having a beveled working edge with first and second conductive metal traces adhered to opposed side surfaces of the substrate along the working edge so as to be closely spaced relative to... | 07/25/1989 |
| 4802476 | Electro-surgical instrument Described is a surgical tool having a unique blade comprised of a blank made of electrically conductive material, a first insulative member, a plurality of electrically conductive members laminated to the first and insulative member and a second insulativ... | 02/07/1989 |
| 4674498 | Electro cautery surgical blade An electro surgical instrument comprising a handle and a replaceable blade. The handle includes a blade receiving slot and means for clamping the proximal portion of the blade within the slot. Also formed internally of the handle and within the slot is a ... | 06/23/1987 |