| 摘要 |
658,173. Making foam. FOAMITE, Ltd. (American-La France-Foamite Corporation). Feb. 4, 1947, No. 3283. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 6, 1947.] Drawings to Specification. [Class 47 (ii)] [Also in Group XXIX] The subject-matter of this Specification is substantially the same as that described in Specification 658,174 but the claims differ. |
