Abstract: A tractor includes a hydraulic lifting and lowering driver to lift and lower a three-point linkage, a load detector to swing according to a traction load of an implement, and a mechanical linkage to transmit a swing amount of the load detector to the lifting and lowering driver. The mechanical linkage includes a first linkage on one side in a right-left direction of a vehicle body frame and interlockingly linked with the load detector, a second linkage on the other side in the right-left direction of the vehicle body frame and interlockingly linked with the lifting and lowering driver, and an operation cable interlockingly linking the first linkage and the second linkage.

Abstract: A row decoder for a semiconductor memory device is disclosed. The row decoder comprises: CMOS NAND circuits each having P-channel transistors and N-channel transistors; and CMOS NOR circuits which follow the NAND circuits and have P-channel transistors and one or more N-channel transistors. The ratio of the channel length to the channel width of the P-channel transistors of the NAND circuits is greater than that of the N-channel transistors of the NAND circuits. And, the ratio of the channel length to the channel width of the N-channel transistors of the NOR circuits is greater than that of the P-channel transistors of the NOR circuits.

Abstract: A spray apparatus is disclosed which is capable of producing a sharp-edged layer of coating in overlap over the surfaces coated in a different color so as to provide a distinctly divided two-tone pattern of wide dimensions without using masking tape. The spray apparatus comprises a first spray means and at least one second spray means different in nozzle design from the first spray means. In the first spray means, a film of coating is produced by an airless type paint discharge nozzle discharging a spray of atomized paint under pressure in an otherwise conical shape which is to be altered in spray formation by a jet of pressurized air whose axis is offset from the axis of the spray of paint and this film is thick enough along one edge and in the center while decreasing in coating toward the opposite edge.