A pinch clamp for clamping or drawing together building materials is disclosed having an elongated connecting bar having first and second ends, and first and second pyramidal prongs. The invention relates to the seeds of soybean cultivar 8012419, to the plants of soybean 8012419, to plant parts of soybean cultivar 8012419, and to methods for producing a soybean plant produced by crossing soybean cultivar 8012419 with itself or with another soybean variety. The release of the IP address may be initiated by the Home Agent based upon information it has received in a registration request or, alternatively, may be initiated by the Home Agent in response to a de-registration request. Film phase shift information is derived from the measured phase shift \u03b4Reffilm, generated from the HR beam, and the reference phase shift \u03b4RefSub, generated from the SRAM beam, which are used for calculating film thickness. The first mode is a telephone mode. This apparatus makes it possible to culture a cell group originating from a particular single cell, to perform culture and observation while identifying cells to be subjected to interaction during the process of culturing cells, and observe a difference in variation between the particular cell and other cells.