A process for the production from whale skins of swollen fibrous masses suitable for the preparation of threads, moulded articles or artificial leather
摘要
申请公布号
GB488596(A)
申请公布日期
1938.07.11
申请号
GB19370019152
申请日期
1937.07.09
申请人
WALTER FREUDENBERG;HANS FREUDENBERG;OTTO FREUDENBERG;RICHARD FREUDENBERG
