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Patent Number Title Of Patent Date Issued
4121694 Labyrinth lubricant seal for belt conveyor roll Oct. 24, 1978
4121693 Method and means relating to high rise building access for fire fighting purposes Oct. 24, 1978
4121692 Ladder tray Oct. 24, 1978
4121691 Composite inspection plate-step Oct. 24, 1978
4121690 Roofer's staging Oct. 24, 1978
4121689 Escape mechanism Oct. 24, 1978
4121688 Safety harness for limited mobility Oct. 24, 1978
4121687 Control system for hydraulic lifts Oct. 24, 1978
4121686 Hollow sound-dampened structure Oct. 24, 1978
4121685 Apparatus for controlling the traveling speed of a motor vehicle Oct. 24, 1978
4121684 Truck with tilting cab and non-tilting separated sleeping compartment Oct. 24, 1978
4121683 Noise silencer assembly Oct. 24, 1978
4121682 Radiator mounting of a vehicle, especially of a motor vehicle Oct. 24, 1978
4121681 Tractor with demountable components Oct. 24, 1978
4121680 Vehicles Oct. 24, 1978
4121679 Self-transporting support arrangement Oct. 24, 1978
4121678 Weighing scale with correction for non-linear spring Oct. 24, 1978
4121677 Clamping device for a coil spring of a weighing scale Oct. 24, 1978
4121676 Method of reducing hysteresis in a spring scale Oct. 24, 1978
4121675 Apparatus for gripping a shaft or the like Oct. 24, 1978
4121674 Method for foam drilling using a biodegradable foaming agent Oct. 24, 1978
4121673 Drilling and installation system Oct. 24, 1978
4121672 Reversing pneumatic percussive device Oct. 24, 1978
4121671 Pile driving Oct. 24, 1978
4121670 Impact wrench Oct. 24, 1978
4121669 Floating row-crop cultivator Oct. 24, 1978
4121668 Motor-driven cultivator with counter-rotating auger shafts Oct. 24, 1978
4121667 Potato harvester Oct. 24, 1978
4121666 Fuel (flammable liquid) tank fire extinguisher Oct. 24, 1978
4121665 Automatic sprinkler head Oct. 24, 1978
4121664 Biodegradable foaming agent in drilling and workover operations Oct. 24, 1978
4121663 Removing hydrogen sulfide from a gas Oct. 24, 1978
4121662 Water purification with fragmented oil shale Oct. 24, 1978
4121661 Viscous oil recovery method Oct. 24, 1978
4121660 Well pressure test plug Oct. 24, 1978
4121659 Collar lock and seal assembly for well tools Oct. 24, 1978
4121658 Pitless well adapter Oct. 24, 1978
4121657 Position indicator for downhole tool Oct. 24, 1978
4121656 Header Oct. 24, 1978
4121655 Air-conditioning system Oct. 24, 1978
4121654 Dry cooling tower Oct. 24, 1978
4121653 Method of constructing rooms with radiant heating or with cooling Oct. 24, 1978
4121652 Apparatus for separating a starter bar having a starter bar head from a hot strand crop-end in a... Oct. 24, 1978
4121651 Casting receptacle or ladle for moulded castings or various materials Oct. 24, 1978
4121650 Foundry casting machines Oct. 24, 1978
4121649 By-pass arrangement for battery grid casting machine Oct. 24, 1978
4121648 Apparatus for electroslag castings of semicircular blanks Oct. 24, 1978
4121647 Method of producing a multilayer metal ingot by the electro-beam remelting of billets Oct. 24, 1978
4121646 Method and apparatus for making molds Oct. 24, 1978
4121645 Room divider panel assembly Oct. 24, 1978
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