The present invention relates to a device of the ironwork type for protecting locks of doors giving access to houses, dwellings, shops and offices, with the purpose to prevent the opening of said doors from outside neither using the proper key, nor a master key or pocklocks with the advantage that, for fitting the security device, no special or ordinary tools are required since the device of the invention can be installed manually, providing for the actuation of the lock and securing the door to its frame. The object of this invention is to provide a device of the ironwork type which is totally different from those available presently in the market owing to a novel construction, and of which the main characteristic is to be portable.
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