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Potter & Johnston Machine Co

Potter & J

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2334544A	Machine tool	Expired / Lapsed	1941-08-26	1943-11-16	0	Details
US2255739A	Machine tool	Expired / Lapsed	1938-06-08	1941-09-09	0	Details
US1748540A	Turret indexing and locking means	Expired / Lapsed	1927-04-07	1930-02-25	0	Details
US1007141A	Tool-operating mechanism for lathes.	Expired / Lapsed	—	1911-10-31	0	Details