Section 10
SEC. 10. The city of Manila and the municipalities in which the grantees, their successors or assigns, may establish telephone, telegraph, or any other system of electrical transmission of messages and signals shall have the privilege of using, without compensation, the poles of the grantees, their successors or assigns, for the purpose of installing, maintaining, and operating a lire and police telephone alarm system, but the wins of such lire and police telephone alarm system shall the so placed, strung, stretched, and insulated as not to interfere with the efficient transmission of messages and signals by the grantees, their successors or assigns.