POWERS ACCOUNTING MACHINE Co

POWERS ACC

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US1302616A	Automatic tabulating-machine.	Expired / Lapsed	1915-05-19	1919-05-06	Details
US1271614A	Cobined type-writer and perforating machine.	Expired / Lapsed	1914-10-31	1918-07-09	Details
US1138314A	Perforating-machine.	Expired / Lapsed	1913-05-24	1915-05-04	Details