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Patents Grants
last 30 patents
Information
Patent Grant
Manual hoist and traction machine
Patent number
5,556,078
Issue date
Sep 17, 1996
Elephant Chain Block Company Limited
Haruo Kubota
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Free rotation control apparatus for a hoist and traction machine
Patent number
5,472,171
Issue date
Dec 5, 1995
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Hoist including brake cover and operating lever coupling
Patent number
5,398,912
Issue date
Mar 21, 1995
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Hoist and traction machine with free rotation control
Patent number
5,351,937
Issue date
Oct 4, 1994
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Mechanical brake for a hoist and traction machine
Patent number
5,330,036
Issue date
Jul 19, 1994
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Hoist including guards with chain swelling and twist corrective sur...
Patent number
5,316,267
Issue date
May 31, 1994
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Main body of lever-type winding machine
Patent number
D347508
Issue date
May 31, 1994
Elephant Chain Block Company Limited
Haruo Kubota
D34 - Material or article handling equipment
Information
Patent Grant
Hoist and traction machine with free rotation control
Patent number
5,305,989
Issue date
Apr 26, 1994
Elephant Chain Block Company Limited
Yoshio Nishi
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Bearing structure for hoist/traction apparatus
Patent number
5,271,607
Issue date
Dec 21, 1993
Haruo Kubota
B66 - HOISTING LIFTING HAULING
Information
Patent Grant
Over-load cutout device for hand-operated, hoisting and pulling mac...
Patent number
D341016
Issue date
Nov 2, 1993
Elephant Chain Block Company Limited
Yasuo Wada
D34 - Material or article handling equipment