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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 |
| 5950395 | Heat insulating structure and production process thereof A heat insulating structure comprising a vacuum insulator fixed to a surface on which the vacuum insulator is to be applied is provided for the purpose of improving the workability in fixing the vacuum insulator to the surface to be applied. A thermally a... | 09/14/1999 |
| 5743048 | Shield for door-locking device disposed in a foam-filled refrigerator door A refrigerator door includes walls forming therebetween a space that is filled with foam insulation. A door-locking device is mounted in the space and is covered by a shield which shields the door-locking device from the foam when the foam is being inject... | 04/28/1998 |
| 5655351 | Reinforced refrigerator door assembly and method of assembling the same A pair of cross brace members are diagonally positioned within an internal cavity of a refrigerator door shell that is defined by an outer front panel, side walls and in-turned, return flanges. The cross brace members are generally L-shaped in cross-secti... | 08/12/1997 |
| 5588731 | Refrigerator door construction An insulated door for a refrigerator or other appliance having an external panel of an open box configuration without integrally molded inwardly directed flange portions, a plurality of separately installed trim pieces arranged around an edge perimeter of... | 12/31/1996 |
| 5509248 | Method for filling and packing insulating powder in the walls of a cabinet body A boxlike body (10) with a rear wall (12) and four side walls (14) is brought into a fixture (34) with the free edges (22) of the side walls pointing downwards. The walls of the body are filled with insulating powder by blowing the powder into the rear wa... | 04/23/1996 |
| 5154468 | Polymeric articulated beverage body door An articulated door covers storage bays of a beverage body. The articulated door is formed by engaging a plurality of polymeric panel sections into a sequence such that a hinge is formed between adjoining panel sections. Each hinge allows adjacent panel s... | 10/13/1992 |
| 4985106 | Insulation structure for appliances An insulation panel for an appliance for reducing one or more undesirable side effects due to the operation of the appliance such as noise, vibration and heat includes a first layer of enclosing material such as polyethylene or polypropylene which has gre... | 01/15/1991 |
