(under the class definition) Apparatus comprising means employing a portion of the earth below ground level as a shape imparting member to form a structure which is at least partially submerged in the earth.
SEE OR SEARCH CLASS
249, Static Molds, appropriate subclasses for static molds or forms.
405, Hydraulic and Earth Engineering,
150.1+, for method or apparatus for casting a tunnel lining in situ; subclass 223 for apparatus for casting a marine structure in situ; and subclasses 233+ for apparatus for casting a foundation pile or pier in situ.
