ES272658A2 - Improvements introduced in the self-rolling bearing devices (Machine-translation by Google Translate, not legally binding)
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Improvements introduced in the self-rolling bearing devices (Machine-translation by Google Translate, not legally binding)
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Improvements in the object of the main patent No. 263,637, which refers to "Improvements introduced in the self-adjusting bearing devices", characterized in that the semi-spherical rolling element of these devices is provided in its periphery, precisely in the line that makes contact with the ground, of a running band embedded by casting and made of an elastic and soft material. (Machine-translation by Google Translate, not legally binding)
ES272658A1961-12-021961-12-02Improvements introduced in the self-rolling bearing devices (Machine-translation by Google Translate, not legally binding)
ExpiredES272658A2
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