Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sprout Waldron & Co
Sprout Waldron and Co Inc
Original Assignee
Sprout Waldron & Co
Sprout Waldron and Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sprout Waldron & Co, Sprout Waldron and Co IncfiledCriticalSprout Waldron & Co
Application grantedgrantedCritical
Publication of FR1217977ApublicationCriticalpatent/FR1217977A/fr
D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
D21C7/00—Digesters
D21C7/06—Feeding devices
FR782217A1957-12-181958-12-18Distributeur rotatif, en particulier pour lessiveur
ExpiredFR1217977A
(fr)