| 摘要 |
506,381. Condensers; moulding casings. MOSS, W. H. Nov. 20, 1937, No. 32035. [Class 37] [Also in Group V] A condenser, or group of condensers, is encased by surrounding with a moulding powder having the basis of a thermoplastic cellulose derivative, such as cellulose acetate, and thereafter moulding the powder under heat and pressure. |
