(under subclass 152.61) Subject matter combined with a means for keeping a permanent record of the determination of the physical characteristic of the borehole, the casing, or a drill rigging.
SEE OR SEARCH THIS CLASS, SUBCLASS:
152.45, for an apparatus for testing a borehole or drilling combined with means for making an electronic recording of a drill depth rate during drilling.
152.53, for an apparatus for testing a borehole or drilling by measuring pressure combined with means for making a record of the test.
SEE OR SEARCH CLASS
346, Recorders, appropriate subclasses, for a recorder for recording the operation of machines, particularly
33+, for recorders combined with external recorder operating means including a well logging apparatus 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.
