Ventilanordnung fuer Bohrlochkoepfe und Verbindung hierfuer

1292676 Wells &c ACF INDUSTRIES Inc 31 Oct 1969 [15 Nov 1968] 22755/72 Divided out of 1292674 Heading E1F The subject-matter of this specification is identical with that described in Specification 1292674 but the claims are directed to a wellhead valve assembly.

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Bibliographische Detailangaben
1. Verfasser:	ALLEN NELSON,NORMAN
Format:	Patent
Sprache:	ger
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING JOINTS OR FITTINGS FOR PIPES LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	1292676 Wells &c ACF INDUSTRIES Inc 31 Oct 1969 [15 Nov 1968] 22755/72 Divided out of 1292674 Heading E1F The subject-matter of this specification is identical with that described in Specification 1292674 but the claims are directed to a wellhead valve assembly.