Tool driving or impacting – Impacting devices – Impact transmitting anvil
Patent
1999-07-23
2000-12-05
Vo, Peter
Tool driving or impacting
Impacting devices
Impact transmitting anvil
91229, 91276, 173204, 173208, B25D 914
Patent
active
061553530
ABSTRACT:
A percussive hammer for delivering impacts driven by oil which is quickly applied under pressure derived from a system supply and from a source of compressed gas.
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patent: 4745981 (1988-05-01), Buske
patent: 5065824 (1991-11-01), Ottestad
patent: 5269382 (1993-12-01), Ottestad
Calve Jim
Mon Donald D.
Vo Peter
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