Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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JOHN HADAWAY ROBERT
Original Assignee
JOHN HADAWAY ROBERT
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Filing date
Publication date
Application filed by JOHN HADAWAY ROBERTfiledCriticalJOHN HADAWAY ROBERT
Priority to ES1977231678UpriorityCriticalpatent/ES231678Y/en
Publication of ES231678UpublicationCriticalpatent/ES231678U/en
Application grantedgrantedCritical
Publication of ES231678YpublicationCriticalpatent/ES231678Y/en
New fixing bolt, which can be introduced into a hole by an axial force applied thereto, characterized in that an elongated shaped rod has indentations on its external surface, and because a coating of dense and resistant flexible material forms a substantially continuous layer on, at least, a part of the indented area of the stem and covers the indentations. (Machine-translation by Google Translate, not legally binding)
ES1977231678U1977-10-281977-10-28
NEW LOCKING BOLT.
ExpiredES231678Y
(en)
PROCEDURE AND DEVICE FOR MEASURING THE DEPTH OF A SUPERFICIAL LAYER OF A METALLIC PIECE HAVING PHYSICAL CHARACTERISTICS DIFFERENT FROM THOSE OF THE REMAINING PART