Abstract: A mat with puzzle function is a four-sided pad. Each side has a toothed border with a succession of teeth. At least two cutting lines divide the mat into four blocks, in such a way that each block has an assembling edge with the complementary shape to connect with other blocks. The block of each mat can engage with another block of the same mat to form a puzzle mat set.

Abstract: A mat with puzzle function is a four-sided pad. Each side has a tooth part with a succession of teeth. At least two cutting lines divide the mat into four blocks, in such a way that each block has an assembling part with the complementary shape to connect with others. The block of each mat can engage with another block of the mat to form a puzzle mat set.

Abstract: A mat with puzzle function is a four-sided pad. Each side has a tooth part with a succession of teeth. At least two cutting lines divide the mat into four blocks, in such a way that each block has an assembling part with the complementary shape to connect with others. The block of each mat can engage with another block of the mat to form a puzzle mat set.

Abstract: A slipper with hollow sole, including: a sole made by plastic blowing molding as a flexible envelope, the envelope defining an internal room, a working hole being formed on an edge of the sole; a clump adhered to bottom face of the sole; and a detachable binder. The sole is formed with at least one fixing hole in which at least one end of the binder is detachably fixed. The fixing hole extends from upper face to lower face of the sole.

Abstract: A fence made of foaming agent is disclosed. A bottom of the fence has at least one inserting portion, and the inserting portion is inserted to a seat. The seat is inserted to an inserting hole for being inserted by the inserting portion.

Abstract: A medically used boot body for a user to wear on the foot. The boot body includes a boot and a soft pad body combined with the sole section of the boot. The cross-section of the pad body has a profile corresponding to that of the sole section of the boot. The pad body has a predetermined thickness. When a medical worker wears the boot and stands, the pad body is deformed to buff the force applied to the foot of human body.

Abstract: A fence made of foaming agent is disclosed. A bottom of the fence has at least one inserting portion, and the inserting portion is inserted to a seat. The seat is inserted to an inserting hole for being inserted by the inserting portion.

Abstract: Method for manufacturing knockdown board material, including steps of: using a conveying device to convey a board material and immerge the board material into a resin tank to which a fireproof agent is added, after the resin fully infiltrates into the board material, the board material being compressed by rubber rollers and then dried and solidified to form a protective film; attaching printed paper to the surface of the board material by way of adhesion or thermal transfer-printing stripes on the surface of the board material; painting a layer of surface treatment agent on the surface of the board material by way of rolling or spraying; laying EVA foam material on back face of the board material and embossing stripes on the foam material; and cutting the board material into a certain shape.

Abstract: A telephone system including circuitry for monitoring the "on hook" and "off hook" conditions of telephone handsets coupled to a system controller and disconnecting all off hook handsets from the telephone line. With the detection of an alarm condition at a security alarm system that requires a communication link, line seizure is effected via an SCR controlled seizure circuit serially connected between each distributed handset and the telephone line. The seizure circuit normally conducts when a connected telephone is off hook. Upon detecting an alarm, a line monitor momentarily shorts the telephone line to drive any conducting line seizure circuits into a non-conducting condition that is maintained sufficiently long to permit the system controller to gain control of the line. During controller communications, the handsets are also isolated from the telephone line. A local phone is also coupled to permit reprogramming if an inoperative line is detected.