WILLIAM H KELLER Inc

WILLIAM H

Active Patents

Total Holdings

Patent Holdings

Patent No.	Title	Status	Filing Date	Grant Date	Actions
US2159232A	Pressure fluid motor	Expired / Lapsed	1937-10-28	1939-05-23	Details
US1640620A	Governor for pressure-fluid-operated tools	Expired / Lapsed	1925-08-29	1927-08-30	Details
US1633501A	Impact tool	Expired / Lapsed	1922-10-10	1927-06-21	Details