(under subclass 152.51) Subject matter combined with a means for keeping a permanent record of the characteristic of the borehole, the casing, or the drill rigging.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152.45, for an apparatus for making a determination of a characteristic of a borehole, a casing, or a drill rigging combined with an electronic recording means for making a permanent record of the determination.
152.62, for an apparatus for making a determination of a characteristic of a pump especially adapted for use in a borehole or a drill rigging and including means for making a record of the determination of the characteristic of the pump.
SEE OR SEARCH CLASS
346, Recorders, appropriate subclasses for a recorder for recording the operation of machines, particularly
33+, for a recorder combined with external recorder operating means including well logging and subclasses 112+ for graph-type recorders. 360, Dynamic Magnetic Information Storage or Retrieval, for magnetic storage and retrieval of arbitrarily variable information which is retained in a storage medium by variation of a physical characteristic thereof and wherein relative movement between a storage element and a source of information, a transducer, or a receiver is required.
365, Static Information Storage and Retrieval, for a recording apparatus not requiring relative movement between a storage element and a source of information, a transducer, or a receiver.
369, Dynamic Information Storage or Retrieval, appropriate subclass for a process of or an apparatus for the storage and retrieval of arbitrarily variable information which is retained in a storage medium by variation of a physical characteristic thereof and wherein relative movement between a storage element and a source of information, a transducer, or a receiver is required.
