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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 7165509 | Hog farrowing system for use in a cold environment and method of use A hog farrowing system for use in a cold environment includes a building providing protection from weather elements. The farrowing boxes have an entrance to permit free ingress and egress of female hogs but restrain the piglets. An alley is provided outside the boxe... | 01/23/2007 |
| 7165508 | Hog farrowing system for use in a cold environment and method of use A hog farrowing system for use in a cold environment includes a building providing protection from weather elements. The farrowing boxes have an entrance to permit free ingress and egress of female hogs but restrain the piglets. An alley is provided outside the boxe... | 01/23/2007 |
| 7013837 | Method for building environment-affinitive pigpen and pigpen structure A pig pen structure has a walking passage and a plurality of pig houses for housing an animal installed along the walking passage. Each pig house has an evacuation room, a lodging room having front, back, and two side walls, and an evacuation room gate installed bet... | 03/21/2006 |
| 6823819 | Apparatus for raising a sow in a farrowing crate In a farrowing pen which includes a pit and over the pit a first floor section on which the sow can stand and lie and two further floor sections on each side of the first floor section for receiving piglets of the sow and confining walls for locating the sow on the ... | 11/30/2004 |
| 6382135 | Pig pen A pig pen has side walls joined together by end walls to form a substantially rectangular enclosure. An angled divider is pivotable inside the pen, having a first end pivotably arranged on a pivot on one end wall and second end attachable to any one of a ... | 05/07/2002 |
| 5813365 | Modular flooring system A flooring system for use in an animal shelter. The flooring system is modular and includes a disassemblable base frame having, as components thereof, a pair of end crossbars, a plurality of longitudinally extending support members, and interconnecting el... | 09/29/1998 |
| 4495892 | Incubator for piglets Pig incubator includes a container formed of a substantially rectangular housing with an interchangeable floor plate and a curved cover in the upper section of which an insert is provided which extends into the interior of the cover and carries a heating ... | 01/29/1985 |
| 4462335 | Swine farrowing hut and method of farrowing pigs and maintaining a disease-free farrowing hut A farrowing hut structure of non-porous fiberglass material is pivotally connected at one of its ends to one end of a fiberglass floor for being pivoted between lowered and raised positions with the floor and interior of the hut structure being fully expo... | 07/31/1984 |
| 4393812 | Swine farrowing hut and method of farrowing pigs and maintaining a disease - free farrowing hut A farrowing hut structure of non-porous fiberglass material is pivotally connected at one of its ends to one end of a fiberglass floor for being pivoted between lowered and raised positions with the floor and interior of the hut structure being fully expo... | 07/19/1983 |
| 4323033 | Mobile arrangement for a group stabling and handling of farm animals A mobile arrangement for a group stabling and treatment of farm animals, especially of milk cows, in rectangular large-capacity cow-houses, in which animals are confiningly stabled and transported for milking. The arrangement combines the advantages of co... | 04/06/1982 |
| 4269144 | Swine farrowing hut and method of farrowing pigs and maintaining a disease-free farrowing hut A farrowing hut structure of non-porous fiber-glass material is pivotally connected at one of its ends to one end of a fiber-glass floor for being pivoted between lowered and raised positions with the floor and interior of the hut structure being fully ex... | 05/26/1981 |
| 4249461 | Ventilating system for a livestock building A ventilating system for a livestock building includes a substantially enclosed building structure having a ceiling with an attic compartment above it and a livestock compartment below it. An elongated air conduit extends through the building structure su... | 02/10/1981 |
