CONTROLLER FOR WINDING DRUM OF CRANE

PURPOSE:To prevent the complicated form in the control of an earth drilling machine or vibration type pile striking machine by installing a device for preventing the random winding on a winding drum which is generated by the slackening of a winding drum cable in the lowering and grounding of an exca...

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Bibliographische Detailangaben
1. Verfasser: SAWAI SHIYUUJI
Format: Patent
Sprache:eng
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