(under subclass 51) Razors of the longitudinal or "old style" razor type.
(1) Note. The razors in this subclass and the indented subclasses are of both the single and the multiple guarded edge type.
(2) Note. All longitudinal or old style razors appear either originally or as cross-references in this class (30) in the following subclasses: 30+, 53+, 77+, 85+, 329+, and 346+. No razors of the longitudinal type should appear originally in the following subclasses: 51, 57-76.