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...that after Walter Hunt patented the safety pin in 1849, he sold the rights to it for $400?
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| Number | Title | Issue Date |
| 7897528 | Heat resistant labels Various embodiments of the present inventions encompass a variety of methods and devices for attaching labels, tags, or identification devices to hot metals. ... | 03/01/2011 |
| 6855404 | Inorganic sheet laminate A laminate of inorganic sheet and polyester resin having an overall thickness of 5 to 25 mils and having an elongation at break in both the cross direction and machine direction of at least 25%. ... | 02/15/2005 |
| 6699804 | Method for making a micaceous product preferably in the form of a mica ribbon and resulting product The invention concerns a method for making a micaceous product capable of being impregnated preferably in the form of a mica ribbon by combining at least a support and a mica sheet. The invention is characterized in that it consists in: coating the suppor... | 03/02/2004 |
| 5079077 | Fire-resistant composite mica insulation A reinforced mica paper includes reinforced mica paper as a base material obtained by mechanically pulverizing muscovite mica or phlogopite mica to form scaly mica and making the scaly mica into paper, a reinforcing material layer formed on at least one s... | 01/07/1992 |
| 4769276 | Mica-coated electrically insulating and fire-proofing adhesive tape especially suitable for electrical or optical fiber cable The mica-coated adhesive tape comprises at least one sheet of mica paper and at least one backing sheet bonded to the mica paper sheet by means of a binder, the face of the mica paper sheet away from the backing sheet being coated with an adhesive. The ad... | 09/06/1988 |
| 4680222 | Process and device for electric winding insulation by impregnation, and stabilized varnish without solvent usable therein Process for insulating by impregnation an electric winding with isocyanurate and oxazolidone cycles resins, in which one wraps around the conductors a glass cloth and porous mica paper tape loaded with a quaternary ammonium salt catalyzing the condensatio... | 07/14/1987 |
| 4576856 | Reconstituted mica materials, reconstituted mica prepreg materials, reconstituted mica products and insulated coils A reconstituted mica material produced by sheet forming a slurry containing mica flakes prepared by disintegrating unfired mica and comprising (i) mica flakes having a particle size of 1.7 mm or more and an aspect ratio of 150 or more, (ii) mica flakes ha... | 03/18/1986 |
| 4491618 | Reconstituted mica materials, reconstituted mica prepreg materials, reconstituted mica products and insulated coils A reconstituted mica material produced by sheet forming a slurry containing mica flakes prepared by disintegrating unfired mica and comprising (i) mica flakes having a particle size of 1.0 mm or more and an aspect ratio of 150 or more, (ii) mica flakes ha... | 01/01/1985 |
| 4157414 | Resin rich polybutadiene-mica flexible high voltage insulation A resinous composition useful for impregnating flexible electrical winding tape is made by mixing: (a) 100 parts of polybutadiene, (b) about 0.25 part to about 25 parts of a solid, organic, aromatic, vinyl monomer coreactive with polybutadiene, (c) a solv... | 06/05/1979 |
